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Author Topic: B'ASS Current Amplifier  (Read 57417 times)
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PeterSt
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« on: April 01, 2016, 05:42:18 pm »

B'ASS Dynamical Current Amplifier (a buffer would almost be a better description but it is not 100% that either)

Edit November 2016 : This page is actually obsolete. Look here at the G3 page for the actual version and price.


(edited June 4, 2016 with pricing data)

To be inserted between D/A Converter Output and Power Amplifier Input.
Adds current to the output of the D/A Converter so the output waves receive more strength in a fashion which can be called "way over"; if your DAC would be able to drive 10 meters /33ft of (Single Ended) Interlink, then the base (amplification) setting will make that 60 meters / 200ft. Additional amplification levels can be switched on, adding 30 meters / 100ft per step.
This only indicates which crazy amount of current is added and which is enormously audible, exactly because it is not needed at all and now performing other tasks (think of a super stable and strong wave).
Because the strength of the signal also very easily brings forward anomalies in the system (think distortions from noise), the amplification can be too much. For this reason the amplification can be hooked up in steps and is set by means of switches in the front (including bypass setting).


Outside footprint is 23 x 23cm / 9.2 x 9.2". Height is 7.4 cm / 3".
The case is all 6mm aluminium, except for the back plate which is 2mm aluminium.
Cooling is provided by means of heatsinks at the sides and a large vent in the cover.

Front (plate) is to be determined.
Volume Control will be with display in the front plate (without Volume Control the display is omitted (closed front plate).



Pricing

OBSOLETE - See first lines in this post.

All prices excl. VAT and Shipping.
Volume Control and Input Selection is subject to changes (research and testing in process).


Current Amplification (2ch)

2 amp      3 amp      4 amp      5 amp      6 amp      7 amp      8 amp      VC (adds)
1. RCA-In / RCA-Out    8151294013106514119015131516144017156518270v
2. RCA-In + XLR-In / RCA-Out + XLR-Out      99522130023160524----390v
3. BNC-In / BNC-Out (incl. Blaxius set)   94532107033119534132035144536157037169538270v
4. BNC-In / BNC-Out x 2 (bal., incl. 2x Blaxius set)   112542143043173544----390v
5. RCA-In / RCA-Out x 2 (balanced)   99552130053160554----390v

Each of the options is direct In to Out.

When you like additional inputs (see table below) :
It is an option to route the main input (D/A converter assumed) via the Input Selector. Add 50I for this. The Main Input is now subject to Volume Control as well. When this is not wanted, add 20x for that.
Otherwise it is assumed that the Main Input (direct In to Out) is connected in parallel to another active input (when selected) which for the NOS1(a) is fine.



Input Selection (2ch) (all prices add, Volume Control mandatory - see rightmost column, above)

For :Base    1x RCA    2x RCA    3x RCA    1x RCA 1x XLR   
1. RCA-In / RCA-Out    604018021203-
2. RCA-In + XLR-In / RCA-Out + XLR-Out      60401802--
3. BNC-In / BNC-Out (incl. Blaxius set)   604018021203-
4. BNC-In / BNC-Out x 2 (bal., incl. 2x Blaxius set)   60401--1104
5. RCA-In / RCA-Out x 2 (balanced)   60401--1104


The tables show the possibilities. The subscripted small numbers can be used to order. Examples :

  • 14v2 : An RCA-In / RCA-Out with 4 levels of Amp, with Volume control and 2 additional RCA Inputs (total price is 1415).
  • 42 : BNC-In / BNC-Out x 2 (Balanced) with 2 levels of Amp (1125).
  • 32vI : BNC-In / BNC-Out with 2 levels of Amp, with Volume Control (can't be without routing over the I(nput Selector) because we chose no other inputs and VC always goes via an input as such; apparently we want the main input with Volume Control) (1265).
  • 32v : Illegal.
  • 32v3 : BNC-In / BNC-Out with 2 levels of Amp, with 3 extra RCA Inputs (1335).
  • 32vI3 : BNC-In / BNC-Out with 2 levels of Amp, the Main Input routed over the Input Selector with 3 extra RCA Inputs and the Main Input also subject to VC (1385).
  • 32vIx3 : BNC-In / BNC-Out with 2 levels of Amp, the Main Input routed over the Input Selector, with 3 extra RCA Inputs and the Main Input NOT subject to VC (1405).



Below you'll find the original text from this first post.


Dear people,

These days we tend to say to ourselves : Can it get any better ? ... with that implying that it impossibly can.
Still, a couple of times per year quite significant improvements occur, some times in the category of "huge".

This day, April 1, should be a memorable day; the day that it couldn't get better ...
Well, it should be, because never before I took so much time for an improvement; first at finding out a proper "setting" (set up), next a period of listening which has been outrageously long (what about 6 months), and lastly the check-back to the original situation; the situation you all have it at this moment.
Why not start with the latter and which I wrote yesterday :


This is the small story about how I, for a sheer 6 months, never dared to remove the New Device but which I now finally did. It is about the final hours before I had to put up a post about it because I had to post about it at some time.
So what do I perceive from that ?

Bass seems of the more deep down earth one. But although interesting, it doesn't combine with what's going on above it - the upper bass / mid bass. It's not there. Or I just want more of it, suddenly.
What's more profound is the highs now being from a rasp. Call it the too much Windows 10586.0 thing.
In the end (which means within 5 minutes) all disturbs me. The attention is drawn to all sorts of the strangest things and nothing seems music. Not any more. Not since I know how it can sound for the better ...

... Via what I like to call chaotic sound, I start to miss my beautiful differentiating drums (the different toms in the kit). It seems back to "only my own recording can do that".

... The similarity in the highs of Windows 10 starts to disturb me again; Too much of "rasp".

... The deep down earth bass also starts to be annoying because too much in everything. The sound is fuller too, but it feels like now "chaotic bass" is the cause. In the end it is less accurate, I am sure.

Maybe I am glad that today's listening hour was relatively short.



I will try to emphasize : this is after 6 months of listening in a row to our new gag. And how much I wanted to tell about it, and how many times I did, in between the lines. Some times more explicitly. But also :

How super difficult things became with each of the novelties coming about, in between. For me myself this has been first the Music Server PC principle for a year before I could spit out the RAM OS Disk. So I rolled from that lean PC situation into the New Device's situation, after a while being able to have the RAM OS Disk alive (better : dead). And, even prior to the RAM OS Disk was in production for you all, there was the Intona.

The above tries to tell that for you, all happened (and happens) in an upside down sequence, compared to mine. You first had the Intona, next received the RAM OS Disk and lastly try to create the Music Server PC principle.
And now I try to keep up with your sound ?

What a yoke. yes

Thus indeed it is so that I started out with the New Device about a year ago. Lean Audio PC was there, but no Intona and no RAM OS disk. The sound was way better. WAY BETTER. Then RAM OS Disk came about, but I could not even judge it because at the same time I was configuring the New Device with its infinite possibilities. So at some stage (and this is up to this 6 months back) we were changing the configuration each week, some times each day (because of clear failure). Then with the Intona all got way better again and I started to wonder whether the New Device might actually still do something for the better.
The last configuration change I tried to apply has only been 2-3 weeks ago, introducing a switch for a dynamic configuration for one of the elements, and that in itself perceivedly being allowed now because of the long break in. But it didn't work out.

Because of what I just told about the new goodies being introduced along the lines, many of you having those, but not having any New Device gag, *and* everybody being so happy with those goodies, I could seriously wonder how my situation would be without the New Device. So envision, working on it for so long, my own sound improving by means of the same things you have applied in the say past year, actually being afraid that by now the New Device would only be for the worse.

This is how I finally tried (to remove it) yesterday, and the small report of that you already read, above. And careful, because what I described there is what you listen to today. And of course I am not telling you that you all listen to cr*p, but what I do like to tell is that we can get used to things so easily, that any previous situation quickly becomes unbearable. Well, we actually know the story ...



With our new toy we, I am sure, will not be able to let play any robot any more; it has been the W8 thing at first, it has been the W10 thing again ... maybe not so much at first alone. Why ? because right away yesterday I heard it again. All loose sand. No real joining of musicians. There was too much to be annoyed about. But for me, and this seems crucial, all right away recognizable from how it was; only (for me) to be tamed by W10 10074, which by now is a flat flubber anyway.
So easy to be fooled ...

Because I never attempted to write down initial thoughts, it is always difficult to do that in aftermath. The extacy has gone. However, with yesterday's experience I can sort of backwards try that :

- It will be a "world record" of old records sounding like today's.
- Drums sounds about completely real, especially from the toms.
- Voices are very profound, forward and pure at the same time.
- There's air between everything, unheard.
- It is very very hard to see unrealism (dangerous because you say that already).
- This is all about balance, balance and balance.
- Nothing disturbs while it remains to be super interesting.

The last one is a kind of special;
Especially yesterday, thus without the New Device, I noticed right from the start all the so-called interesting aspects. They attract because they are noticeable and obvious. The opposite of that, in my experience, is that nothing draws the attention and that you have background music instead (no matter the level). But this is different ...

With the New Device you'll *always* be drawn into the music.
oops What did I just say !
Everything, really everything is interesting. But from a strange angle. What might occur, depending on the music of course, is :

- The sheer purity of sounds and voices;
- The differentiation of drums (toms) with a "how the h*ll did this actually sound without the New Device then ?!";
- The some times infinitely long playing cymbals;
- The sound of electric bass guitars (the real revelation, I tell you !);
- The "why does nothing disturb" feeling;
- The almost constant urge to envision the difference with real musicians, that never succeeding;
- The orgasmic intention of music concerned.

The latter is a special one; I have examples where "orgasm" as such is explicitly implied (swoon) where it would be tough to make it really explicit, but without the New Device you won't know about the implication to begin with. My conclusion of this is : so real everything becomes. And actually this is not so difficult to understand for those who play musical instruments (or sing I guess) themselves;
A performer is just that. This is not someone making money - no, it is a performer. And the messages in that really can come across. It is that other dimension again. So say it is about sweep up and what's very noticable is that the sweep up works for you when the performer implies it;
People some times talk about "dance" as a music type which can be liked. I am among those, but it very much depends on the quality of the music, but foremost about the "working out" of what dance implies - that sweep up again. Hardwell, Tiësto and their interaction with the mood of the audience and how to influence that at the precise right time so extacy implies more extacy. And mind you, this thus depends on interaction between two parties, while now there can't be interaction. It is you and the speaker, the speaker talking to you, your talking back being useless. So now it is 100% of going into the implied emotion. And I say that this works, and that without the New Device nothing much of that is there. There's many aspects being so good, but there's no blend (I say).



It is clear that I am trying to talk you into sleep; That you will not be able to finish reading the April 1 post, of which I each year seem to need one.
Maybe I am trying to tell you that last year's post was an April Fool's post at first, was not at second, but unintendedly was after all. Or maybe I like to tell you that my efforts were doomed to end up as a yoke.
Maybe I need to put my both feet on the ground and tell myself that nothing is going to be better than the NOS1a anyway. Or that it makes no sense to work on improvement along such lines, because all the effort is out of control during the design, the work of prototyping and testing. Heck, it is already overruled by a new XXHighEnd version and if not that a USB cable and when we think it is done an Intona comes about and all other virtual improvements are moot right away. So what about no reason for a new DAC ?

When one sits back and thinks about what could be done to again improve the current situation, the least that brings us is the affordability for every one. No 20K+ D/A converter hoopla (no matter it was for real). No diving into the unknown. No being the only one with maybe 5 more who has it because of $$ capabilities. It would not be my style.

People may not know (or have forgotten) but the "a" from NOS1a already came from the design of a new D/A converter; in there and at the time this was unfinished, already because how to test without the real D/A converter at hand. But we can do such thing more often (for a while) and this is how today the New Device emerged;

Your most valuable and "cheap" upgrade for the NOS1(a) at the same time.
Wait, it is not even for the NOS1(a) alone.

It is the total overkill of formal current requirement at the speaker side by a factor of more than 6;
It is the precise arrangement of how adding current to the output ends up in precisely that balance required. As often in audio, there is no real math for defining best sound, let alone that it would be about "best balance". However, what I can personally say about it, is this :

From the NOS1 development we learned that too few current makes the highs suffer. Back then I could reason how the highs (with its high frequency cycles of the wave) actually require more current than the bass wave. It is even logical;
What we see today is that too few current raises the lowest frequencies and take out the higher ones. But this is super fragile and with the notice that everything has so much improved since the original NOS1 development, that there is no comparison;

The highs suffer to the sense of the "rasp" idea I talked about. Think like an original fluent high ferquency (not really a sine (sinus) but at least consistent) which now exhibits "holes" in it because of the lack of continuous current (this will also be related to the feedback of the speaker driver). But this is just something you might get used to, as it shows a fairly normal "highs" sound. But watch out, it is a flavor meanwhile (and I can't stand flavors);
What is way more interesting to perceive because we may know if from headphones only, is how electric basses suddenly show their "wood". This is about the frequencies just above the lowest (think 300Hz) and how they seem to be eaten first by too few current. Maybe it is too much hypothetical, but think like this sequence of matters :
- first the highs are arranged for by means of leaving them out each few milliseconds;
- next the upper bass is smeared because of the (most probably) feedback of the speaker driver and too few control;
- Lastly the lowest frequencies suffer with the - I dare say - again the speaker (impedance) reaction.

Notice that I don't think that we ever experience the latter step because there's sufficient current for that. But it works an other way around : when the lowest frequencies are not really under adequate control (think speaker driver) we get deep down earth bass - but nothing much of any bass in a normal speaker. So :
Watch out : Bass of a kind which only Orelo MKII owners might perceive, because of its undistorted straight to 19Hz explicit feauture. And since I did not have an Orelo MKII speaker myself back in say 2010 and the "current" experiences of the NOS1, I really can't tell how it would have sounded back then (with for example passive current to voltage (I/V) conversion).
Today I do, and now too few current exhibits too much bass but one of a strange kind (as I said in the beginning, interesting, but chaotic).

Because of the versatily of the New Device it is easy to create too much current. Actually it can do up to the "overkill" of almost 44. Now remember, today we apply an overkill of just over 6 and this implies the exact right balance. But it can do 44.
Side note : the overkill is related to the momentary current output of the NOS1(a) and which implies something like 20 meters of normal interlink with moderately good capacitance. This, while the Blaxius interlink is a total overkill in itself with being able to do 160 meters of 6GHz frequence and further the same result. This now all is "overkilled" with that factor of 6 again, while it could be 44. Now :

When we go one step further than the 6 (which would be something like 9) we're in disco land already. All is mighty interesting, but it is too much of "blax". It is not playing fragile any more and all becomes too much of stompin'. Like being in the real disco and you can experience it as tiring.
Btw, this too exhibits as chaotic.



If people are still awake, they may want to know what the New Device actually is ...

Let's say I am fooling around with headphone amplifiers;
Output impedance is just under 3 Ohms which should be good enough for a 32 Ohms input impedance (very good) headphone.

Maybe I'll post some more about it, later today.

wacko Peter wacko

PS: Of course people can subscribe to this. First come first serve.



Edit May 8, 2016 : Here's the picture of what became of the design of the case :



« Last Edit: December 02, 2016, 04:13:44 pm by PeterSt » Logged

For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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Diede
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« Reply #1 on: April 01, 2016, 07:01:56 pm »

PS: Of course people can subscribe to this. First come first serve.

I'll take two  Grin

Best regards,
Diede
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W8 and W10 - June 8, 2015 (2.02)
XXHighEnd PC (own build) -> i7 4930K Hyperthreading On (12 cores), 16GB, Windows 8 Pro 64bit or *Windows 10 Pro 64 bit Insider Preview build 10074* on separate SSD’s,  XXHE on 2GB RAMDisk (IMDisk), music on internal spinning disk & LAN (*always On*) / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = *4* (max 60) / not Invert / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core3-5 / Playback Drive 2GB RAMDisk (IMDisk) / UnAttended / All Services Off / Keep LAN - *Persist* / WallPaper *Off* / OSD *On* /Running Time *On* / Minimize OS / XTweaks : Balanced Load = *63* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = On / *Custom Filter Mid 705600 or High 705600* / -> USB3 (Silverstone non isolated) Sw#3 of NOS1a = down) -> *WireWorld Ultraviolet USB Cable 1m* -> 24/768 Phasure NOS1a async USB DAC, Driver v1.0.4b (*4ms*) -> own build NCore NC1200 amps (4 mono per channel), own build of Orelo MKI Open Baffle Horn Speakers
Mamba315
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« Reply #2 on: April 01, 2016, 07:36:28 pm »

I'll take at least one... Happy

BTW, do your comments regarding the "NOS2 Lego DAC" also apply to those differential amplifiers you were developing?  Or are those also "no go" at the moment?
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« Reply #3 on: April 01, 2016, 08:17:00 pm »

I dreamt about this device last night. Before you even posted!
Just what I want.
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acg
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« Reply #4 on: April 01, 2016, 08:53:10 pm »

I just spent half an hour reading that post Peter and I am no closer to knowing what the New Device is.  At first I thought a new I/V stage for the NOS1a and then I thought you have developed a preamplifier and later still your writing made me think of a passive buffer to go between DAC and amplifier (eliminates DC offset, breaks ground connection) but your descriptions are really of something between amplifier and speaker...at least I think they are...unless you have developed an active buffer.

Scratching my head...
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Asrock X79 Extreme 4-M/ Xeon E5 2648L 8 Core 1.8GHz 70w TDP running at 1.2GHz with Hyperthreading On [16 cores]/ 16GB Ram / RAM-OS / *All* music files are WAV / Isolated Silverstone USB Card fed by LPS

XXHighEnd 2.05 RAM-OS (W10586 RAM)
Engine#4 Adaptive Mode / Buffer 4096 / Q1/3/4/5 = 14/1/1/1 / xQ1 = 1 / Processor Core Appointment Scheme = Core 1-3 / PlayerPrio = Low / ThreadPrio = RealTime / ClockRes = 1ms / Not Switch during playback = off / Xtweaks Balanced Load = 64 / Nervous Rate = 1 / Cool when idle = 1 / Provide stable power = 1 / Utilize cores always = 1 / Time Stability = Not Stable / Time Performance Index = Not the best / SFS 0.12MB Max 20MB / Straight Contiguous / Include Garbage Collect = on / Start Playback during conversion = off / Do not start playback at all = off / Copy to XX-drive by standard = on / Always clear Proxy before Playback = on / Stop Remaining Desktop Services = on / Stop Remaining Services = on / Stop WASAPI Services = on / Stop W10 Services = off / Keep LAN Services = on / Persist = on / Use Remote Desktop = on/ Custom Upsampling / Minimize OS = on / Peak Extend = off / Unattended

Audio Chain
Silverstone USB3 (isolated) >> Clairixa USB (short) >> Intona >> Clairixa USB >> 24/768 Phasure NOS1a async USB DAC, Driver v1.0.4 (4ms) -> 6 way active horn speakers (Single Ended Triodes)
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« Reply #5 on: April 01, 2016, 09:30:44 pm »

Haha... sounds like the approach I'm using with my AC mains. I knew I needed to lower the impedance post isolation transformer, and decided to employ a PS Audio P10 simply for this purpose (not sure if its 'wave regeneration' is helping, but its not the reason I bought the device).

So your New Device is simply lowering the impedance of the NOS1a and giving options for current delivery?

From the NOS1 development we learned that too few current makes the highs suffer.

This has always been my experience replacing a powerful amp with one that isn't really up to the job of driving the speakers adequately.

Let's say I am fooling around with headphone amplifiers;
Output impedance is just under 3 Ohms which should be good enough for a 32 Ohms input impedance (very good) headphone.

So your New Device is a line-level device and not actually directly connected to the speaker?

Mani.
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Audio PC: Phasure Mach II / Win 14393.0 on RAM-OS / controlled by RDC, no GPU card installed / connected directly to music server
XXHighEnd: 2.07 / Minimize OS / Engine#4 Adaptive / DB=4096 / Q1=0 /  xQ1=1 / Q3,4,5=0 / SFS=1.00 / XTweaks = 43, 100, 0, 0, 1 / Straight Contiguous / Clock Resolution = 1ms / Scheme 3-5 (low/realtime) / 16x Arc Prediction / *Peak Extend ON* / Unattended
Main System: Phasure NOS1a B75 G3  -> Thöress/Elrog 300B mono amps -> Tune Audio Anima horn speakers
Office System: Phasure NOS1a G3  -> 'The Truth' preamp -> Consonance/Elrog 211 mono amps -> Impulse H2 horn speakers
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« Reply #6 on: April 01, 2016, 09:32:51 pm »

Djzzzzz sounds interesting.... But do not have any idea what this is.... I have 4 amps now... So 4????  Wink no idea if it could work with my speakers.....

First more info  Wink
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Januari 2017 XX 2.05
OriginAE x11v Home build HTCP ~ Asus x79 mobo 3930K 12 core underclock 500 MHz,
16GB, *Windows 10 Pro 64 bit build 14393.0* *from RAM*, music on music server / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = *0.10*  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core *3-5* / Not Switch Processors during Playback = Off/ Playback Drive *none* (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Not the best (OS from RAM issue) / Time Stability = Off (OS from RAM issue) / Custom Filter Mid 705600 / -> USB3 (Silverstone both sides isolated = Sw#3 of NOS1a = Up) -> *Clairixa USB 15cm* -> Intona Isolator -> Clairixa USB 0.70m -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink ->> Metrum Amps ->> Metrum Acoustics ESL Open Baffle.
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« Reply #7 on: April 01, 2016, 09:37:15 pm »

Hi Peter,
Interesting, I really do not know what you talking about, but:
Put me on the list for this New Device...... I like new devices.
All for better SQ.
Regards, Arjan
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October, 2016 (2.06)
Music Server (old PC) RDC to Mach II Stealth 10586.0 RAM-OS / no videocard / Engine#4 Adaptive Mode / Q1/3/4/5 = 14/0/1/0/ Q1Factor = 3 (Dev.Buffer = 4096) / ClockRes = 1ms / SFS = 2 Mx = 60 Straight Contiguous / Playerprio = Low / ThreadPrio = High / Scheme = 3-5 / Unattended / Minimize OS / PeakExtend off / Custom High 25010 / 16x Upsampling / XTweaks 29,100,1,0,1/ --> mobo USB --> Clairixa 80 cm --> Intona --> Clairixa 10 cm --> NOS1a 75B --> Blaxius --> bnc amps Jadis JA30 --> Speakers
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« Reply #8 on: April 02, 2016, 12:14:29 am »

Ok, below the post I originally created on last February 8 ... (but did not post until today).
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W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #9 on: April 02, 2016, 12:15:11 am »

... and the best ever.

Wow, have I been breeding long on this one ...

It was April 2015 when I started testing the Poweramps for the NOS2, that I saw forthcoming something for the NOS1(a). Purely by accident and just because something wasn't working well for those poweramps.
The poweramps went through a reincarnation hence a 2nd version and from there on I got even more convinced I could do more with them; much more.

Envision a project of listening to uncountable variations of different operational amplifiers in sequence (in a chain), where also the amount of them wildly influences. That is, when it is used as a kind of pre-amplifier. No, wait ... Post Buffer.

This is what I wrote back in May, 2015 :


Maybe it is hard to follow, but this is thus the exact other side of the "chain" to test as this is no load at all. However, there's infinite current available were it for headroom. In this built (config) case this is 750mA while normally we use 80mA for our NOS1(a) (and then usually into 50-100K).

So what I found, unexpectedly, is that this matters a LOT. It is a bit of the same thing as people calling you names when you come up with a 6GB bandwidth long distance video solution and name it Blaxius, which also matters a lot. Do the math with capacitance and all (and the 80mA) and you'll come up with 20m+ of cable length. But make an even less capacitance cable and it helps vastly. What I did here was increase the current possibiliy and again it helps vastly.



And this is what I now made formal and name it

B'ASS

I forgot a bit because of too many things happening lately, but it will have been since last October that I have my solution in there permanently, without ever wanting to take it out. And up till today I am thinking that it got better *again*. So I suspect quite some burn-in time although it is always difficult to pin-point.

So I told about all these combination possibilities, right ?
Well, now *that* bugged me ! I even found out what element in the NOS1(a) is causing the burn-in of it needed. If was an exact same thingy I put on the B'ASS board and that caused an unjudgable situation were it for Sound Quality. But how could I know ...

secret
Ok, I'll tell you :

You don't want to know how much I desired this to be an outboard thing. I am not even sure why, but I guess I felt it was possible. Thus, for one time NOT evertybody sending out his precious NOS1 or NOS1a. Man, do those DAC's have a mileage on them by now !

Envision me testing all these situations with one purpose only (and I am super serious) : have more bad ass bass while no drop of accuracy is lost.
But wow, that is a difficult task, I can tell you !

The two types of PCB's I obtained, both served all the "chips" in the world needed (this is about pin layouts). This is about a required operational amplifier (OpAmp) and they tend to make "sound". But as known, I don't like sound. You don't either. Neutral is key ...
None if it would sound like I wanted it to (which is "not sound") until ...
Until at some stage I thought to recognize something of burn in. It was the same situation as in the NOS1(a) already (for that chip) and to my strict ideas it shouldn't make a difference for sound. But it did. However, as it was the best performing setup so far, I let it in for over a week and started to hear improvement. And only then I thought : okayy, so why not take out my own burned in part (from my NOS1a) and move it to in there. And then listen again.

Tadaaaa ... yes
love this

By this, the most stange situation happened and this is about my NOS1a now being criple as one of its required parts was in the B'ASS (temporary) box. I didn't care much, but it suddenly made me see the light ...

With these things, all is about feedback and no feedback. So feedback technically is good but may not be good sound wise, while no feedback is technically bad but something is out of the signal path so it should be better, "audio" wise.
This is why the PCBs are able to do both. That is, one of them could - the first version.
I'm afraid it is impossible to understand, but exactly this "feature" of the board made it possible to see that light ...

I could create the exact same situation by putting back that chip in my NOS1a and nothing in the B'ASS box for that matter. So all the B'ASS contains and does is having a few chips which add current with no feedback whatsoever. And while they measure as good (about the technical thing) they sound superb (with the feedback - officially required - it was so-so).


So here you see a picture of how the THD measures (this is Single Ended hence RCA output) and I can tell you that totally nothing is added for distortion. We would see the same without B'ASS.

But there is a difference with :
The bass. swoon

Yeah, who would have guessed that eh ?
Actualy it is uncanny;

With the careful selection of the amount of current to push through (believe me, that took months all together, including the other permutations) I now have a bass over here I previously only perceived at concerts. But actually it is not the bass as such;

As usual it is hard to explain. But let's say that it is about slam to begin with. How everything receives a layer under it, pushing upwards that everything. How this really is the finishing touch to let people sing with their own unique voice. How you see them taking a breath for the next phrase to sing.
So what has this to do with bass ?
Apart from the slam maybe not so much. But it is about power. Power in everything. How the cymbals start to sound infinitely long. Ehm, how current usually does that ...

It makes a guitar string a guitar string. Like you can see that you can pull the string up and let it go. How the zzzingg now is a real guitar string.
Actually it is about all but the bass. But ...
But bass is made of so much more overtones ... and it is them doing the job.

So ... On to the most crucially occurring matter ...
It is about how electric basses now so much shine.
Err, WHAT ?!?

Yes.
THis is so "bad" that from now on you will recognize the wood the bass guitar is made of. And might you not know - oh yes, this is what bass guitars are chosen for by their players. For how they sound. We may think this is the amplification which let sound a bass guitar how it does, but this is really not so. And now you can hear it.
This is so much so that you now can see how the bass player is holding his instrument. How he stands.
This is so much so that you are going to pick any next album on more of that. I'll give a super simple example, encouraging for your "what ?!?" once again : The Police.
Easy to think "The Police so what ?". Well, try it. Your familiar album will sound like totally new. So much is this a new dimension now ...

It is not so that there's a slamming bass now everywhere, no matter I used the noun "slam"; it is not so that it is all over deep low sound everywhere; nothing of that kind. It is so that those basses now have a most profound colour and therefore play the lead rythm. The walking bass lines so often played are now suddenly there while previously they (were there all right but) went unnoticed. Some times this is so full with emphasis that it looks like I'm taking the bass out of the music and amplify it separately. Btw something I suggested to do in the very early days of XXHighEnd. Just because the bass guys on stage do so too (their own amplification) which is actually mean because we can't.

Because the application implies electrically more speed, there's also the most clear purity now springing from instruments and voices, which otherwise wasn't even known. That guitar string again as the example, but which somehow implies a "focusing depth". Very difficult to find the words for it; it is how a voice is talking to you from the far end in the room, you also not having problems with it actually springing from one source point. This is the same and I guess it is about reality. But anyway, it creates depth and makes the room full with sound, without being fuzzy at all (the opposite).



I am sure this will be your greatest NOS1 upgrade so far. It will also be relative cheap because you won't need to send off your NOS1(a) indeed. We also don't need to send it back to you. All what will happen is that we will send you this nice poplar-wooden (which is very soft and white) box with B'ASS capabilities. yes

The sort of downside is that we can choose of 3 flavors :
1. With RCA only;
2. With XLR and RCA;
3. With BNC only.

#1 and #3 are cheaper because it requires half of the "amplification".
#2 is required when you use XLR (Balanced).
#3 is required when you use the Blaxius interlink.

... which latter also formally requires small pieces of Blaxius, which makes #3 more expensive than #1.

And of course, try to envision that what goes out, goes in the very same. Thus for example : Have RCA+XLR out, means that you also have RCA+XLR In.

Prices (ex VAT and shipping)

Edit, April 2, 2016 : Added the option of BNC Differential.

All in wooden box of 23(W) x 36(D) x 7(H) cm (9.2 x 14.4 x 2.8 inch) with 120/240 switchable linear power supply and On/Off switch. No switches in the signal path anywhere.

1.
With RCA-in and RCA-Out. Single Ended Stereo B'ASS. Output Impedance 33 Ohms.
Including Headphone output jack. Output Impedance 2.9 Ohms.
610 euros.

2.
With RCA-In + XLR-In and RCA-Out + XLR-Out. Balanced Stereo B'ASS. Output Impedance 33 Ohms.
Including Headphone output stereo jack (Single Ended). Output Impedance 2.9 Ohms.
790 euros.

3.
With BNC-In and BNC-Out. Single Ended Stereo B'ASS. Output Impedance 75 Ohms.
Including a pair of Blaxius BNC Interlinks of ~ 50cm / 20".
Including Headphone output jack. Output Impedance 2.9 Ohms.
740 euros.

4.
With 2x BNC-In and 2x BNC-Out. Balanced Stereo B'ASS. Output Impedance 2x 75 Ohms.
Including Headphone output stereo jack (Single Ended). Output Impedance 2.9 Ohms.
920 euros.


With all this, you will have a totally differently sounding NOS1(a) (or other DAC), while you can always choose to (not) use it.

Hope you weren't fooled too much !
Peter
« Last Edit: April 02, 2016, 01:53:02 pm by PeterSt » Logged

For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #10 on: April 02, 2016, 01:08:23 am »

It's over 1. april so - BNC-In and BNC-Out for me please ;-)

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« Reply #11 on: April 02, 2016, 01:41:21 am »

#3 for me!

Regards, Arjan
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Music Server (old PC) RDC to Mach II Stealth 10586.0 RAM-OS / no videocard / Engine#4 Adaptive Mode / Q1/3/4/5 = 14/0/1/0/ Q1Factor = 3 (Dev.Buffer = 4096) / ClockRes = 1ms / SFS = 2 Mx = 60 Straight Contiguous / Playerprio = Low / ThreadPrio = High / Scheme = 3-5 / Unattended / Minimize OS / PeakExtend off / Custom High 25010 / 16x Upsampling / XTweaks 29,100,1,0,1/ --> mobo USB --> Clairixa 80 cm --> Intona --> Clairixa 10 cm --> NOS1a 75B --> Blaxius --> bnc amps Jadis JA30 --> Speakers
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« Reply #12 on: April 02, 2016, 01:46:04 am »

Hi Peter,

Do you have images of the B'ass box?
Just to have an idea of the connections and how it can fit in my setup.

Regards, Arjan
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October, 2016 (2.06)
Music Server (old PC) RDC to Mach II Stealth 10586.0 RAM-OS / no videocard / Engine#4 Adaptive Mode / Q1/3/4/5 = 14/0/1/0/ Q1Factor = 3 (Dev.Buffer = 4096) / ClockRes = 1ms / SFS = 2 Mx = 60 Straight Contiguous / Playerprio = Low / ThreadPrio = High / Scheme = 3-5 / Unattended / Minimize OS / PeakExtend off / Custom High 25010 / 16x Upsampling / XTweaks 29,100,1,0,1/ --> mobo USB --> Clairixa 80 cm --> Intona --> Clairixa 10 cm --> NOS1a 75B --> Blaxius --> bnc amps Jadis JA30 --> Speakers
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« Reply #13 on: April 02, 2016, 02:37:09 am »

Peter

You don't mention it specifically, but I assume if there is a headphone out then the B'ASS comes after the NOS1a in the music chain not before it?

Perhaps add the B'ASS to your listed system?

Have you measured the power output delivery of the headphone output jack?

Thanks
Frank
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« Reply #14 on: April 02, 2016, 02:59:25 am »

#1 please

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« Reply #15 on: April 02, 2016, 04:02:32 am »

Pictures please Peter.  It is a pretty big box.

A couple of questions...

Can it be built into the NOS1a?  I would prefer to have fewer boxes rather than more.

Do you think a switch and phono-in and perhaps a volume control could be incorporated?  After all it seems as though this new device is acting as a preamplifier.

Do you have some specs for the new device?  Gain, power draw etc.

Regards,

Anthony
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Silverstone USB3 (isolated) >> Clairixa USB (short) >> Intona >> Clairixa USB >> 24/768 Phasure NOS1a async USB DAC, Driver v1.0.4 (4ms) -> 6 way active horn speakers (Single Ended Triodes)
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« Reply #16 on: April 02, 2016, 05:30:13 am »

Count me in for BNC as well Peter.

BTW, I love reading your description the difference with the B'ASS. It's always about those things that make live music instantly distinguishable from recorded playback. The fact that the difference is ever diminishing with each of your improvements, gives me hope that one day I really won't be able to tell!

Todd
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« Reply #17 on: April 02, 2016, 08:14:08 am »

Peter,

BNC for me also  Happy do we need 1 or 2 for 1 NOS 1a Peter? You now my situation what would be needed.

 Happy
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« Reply #18 on: April 02, 2016, 09:01:49 am »

Peter,

BNC for me  Grin

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« Reply #19 on: April 02, 2016, 09:09:58 am »

do we need 1 or 2 for 1 NOS 1a Peter? You now my situation what would be needed.

Hi Gerard,

Just one for one NOS1(a). So The Device ( Cool) is stereo (two channel) in and out.

Regards and thank you,
Peter

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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #20 on: April 02, 2016, 09:21:26 am »

Hi Peter,

One for me too, the BNC one.

Could you pls post pictures of the B'ASS box.

Best regards,

Arvind
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« Reply #21 on: April 02, 2016, 09:22:22 am »

do we need 1 or 2 for 1 NOS 1a Peter? You now my situation what would be needed.

Hi Gerard,

Just one for one NOS1(a). So The Device ( Cool) is stereo (two channel) in and out.

Regards and thank you,
Peter


That is just great....  Happy
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« Reply #22 on: April 02, 2016, 09:29:45 am »

Hi Peter,
#3 for me  Happy
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« Reply #23 on: April 02, 2016, 09:30:08 am »

A #2 and a #3 for me please Peter.

So if I understand correctly, these boxes can be used at the output of any DAC... or any line-level device for that matter. Correct?

Mani.
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« Reply #24 on: April 02, 2016, 09:35:52 am »

Pictures please Peter.  It is a pretty big box.

If I would have that I obvisouly would show it. Happy
But I haven't, as I didn't go further last November than sorting out the possibilities for a real audiophile box without resonance (of e.g. the lid) and such and that it should be of the proper wood type (the type of which I say it feels good for audio). As it is now this is 18mm of poplar wood but which maybe turns into 12mm because it is possible for the joints required. But with the 18mm it is 67mm of height, which I think is nice (with 12mm the height drops with (2 x 6 =) 12mm).

Nothing will be shown of the lid as it drops over the base and is screwed from the bottom side. The bottom side edges are 45 degrees angled inwards. There's also some gravures, plus slits in the lit for venting.

The color is transparant white (there's a polished finish over the wood which itself is close to white).

Quote
Can it be built into the NOS1a?

No, not really. It could with quite some additional effort ($$) but it was my explicit idea to avoid the transportation this time.

Quote
Do you think a switch and phono-in and perhaps a volume control could be incorporated?  After all it seems as though this new device is acting as a preamplifier.

You are probably right. But where you go wrong is where any small change which wasn't intended, right awy kills the sound. It is (or feels) similar to the attempt of having RCA next to BNC which I gave up after a month of trying different things. It just wouldn't work out, or say it always sounded worse as the one and only good set up : the genuine 75 Ohm.
So if I'd so this, then the first thing what happens is that I can't listen to it myself. Oh, I can, but then you're forcing me to listen to vinyl.
sorry
But quite easy do do it yourself ? This is all not even in the SMD domain. Just input cabling.

N.b.: The box size is a bit over-measured because I don't want the power supply to influence the amplifier boards plus I want the cabling guided around all what could influence for the worse. So there's really space left in there.

Quote
Do you have some specs for the new device?  Gain, power draw etc.

Gain I mentioned in my to long story : 1.
So, unity.
Power draw will be close to "nothing", although I need to measure which I will try not to forget for later today.

Regards,
Peter
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #25 on: April 02, 2016, 09:40:26 am »

So if I understand correctly, these boxes can be used at the output of any DAC... or any line-level device for that matter. Correct?

Correct !

Peter
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #26 on: April 02, 2016, 09:49:25 am »

I'll take at least one... Happy

BTW, do your comments regarding the "NOS2 Lego DAC" also apply to those differential amplifiers you were developing?  Or are those also "no go" at the moment?

Hey Matt,

Let's say that all elements are still alive and that it is a matter of finding "the" application for them. This B'ASS is part of it too as it is actually the same. So what it is, is the derivative from those power amps, which turn into power amps again when additional components cause gain and more power. Add a large heatsink and there you go.
Probably at some stage (hereafter ?) I will dive into that again. My personal problem is to some extend that it is hard to test myself sound wise because of the active speakers (which can be fed with external amps but the comparison will be apples to oranges because of then different filter arrangements). So point really is : I only want to make things when they are judged (by me) as the very best; How to do that ...

Best regards,
Peter
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #27 on: April 02, 2016, 09:58:41 am »

So your New Device is simply lowering the impedance of the NOS1a and giving options for current delivery?

Mani, although I think it is clear by now, maybe this outlay makes things additionally clear :

The NOS1(a) too, has natively something like 0.8 Ohms output impedance. The 33 Ohms or 75 Ohms for BNC is created on purpose, which is related to capacitance issues under way otherwise.
With the B'ASS this happens the same (but is natively 2.8 Ohm or so).

With headphones this 33 etc. Ohms of output impedance at the amp is not allowed, or at least not with the low input impedance headphones. So things will go badly when both sides have the same impedance, or better : the input impedance at the other side should be ~10 times higher at least than the output impedance of the "sender". Say (roughly) that otherwise the current won't flow.

Peter
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #28 on: April 02, 2016, 10:03:32 am »

Just to have an idea of the connections and how it can fit in my setup.

Hi Arjan,

Since you ordered #3 you thus have BNC. I assume also in the power amps;

So outputs of NOS1a goes to the inputs B'ASS and the outputs of B'ASS goes to your power amp(s).

Actually you just inject the B'ASS in the output of the NOS1(a).

If this is not what you meant, just let me know.
Peter
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

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« Reply #29 on: April 02, 2016, 10:29:07 am »

Hi Peter,

Yes, the point is that currently the Nos1a is just in the middle between the amplifiers. With the blaxius exactly at the right length. So to me it seems that the B'ass will be in the middle now replacing the Nos1a with the Nos1a left or right from it. So they will be positioned next to each other.

So will the 50cm enough to do that? I hope you understand what I mean.

Regards, Arjan
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« Reply #30 on: April 02, 2016, 10:47:24 am »

Arjan,

Aha ...
I mentioned "~ 50cm" because I actually don't care *and* I know that a bit too long is not comfortable and a bit too short doesn't really work out. Haha.

I know from my own situation how tough it is to have those very stiff cables guided like I want and I too had to make an estimate on the length required. This is all "custom work".
Whether it helps you I can't really tell, but you can have any length (assumed it is reasonable).

Btw, making those very short lengths is a total pain because the inner core of the cable shifts in the outer core when putting (or pulling) pressure on the inner core. Maybe not easy to explain, but the short lengths are quite undoable to make. But alas ...

Perter
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« Reply #31 on: April 02, 2016, 11:05:33 am »

Hi Peter,

In my setup the Nos1a has balanced BNC outputs to the balanced power amps, so 2 BNC's/Blaxius's per channel.

How will the B'ASS look like (and cost) in my situation?

Regards,
Stanley
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« Reply #32 on: April 02, 2016, 11:12:32 am »

Peter,
Is it possible for you to determine the right length of the short blaxius when positioned Nos1a and B'ass next to each other?

Else, where are the in- and outputs on the B'ass are positioned? With that knowledge I could figure out the needed length.

Arjan
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« Reply #33 on: April 02, 2016, 12:22:31 pm »


Quote
Do you think a switch and phono-in and perhaps a volume control could be incorporated?  After all it seems as though this new device is acting as a preamplifier.

You are probably right. But where you go wrong is where any small change which wasn't intended, right awy kills the sound. It is (or feels) similar to the attempt of having RCA next to BNC which I gave up after a month of trying different things. It just wouldn't work out, or say it always sounded worse as the one and only good set up : the genuine 75 Ohm.
So if I'd so this, then the first thing what happens is that I can't listen to it myself. Oh, I can, but then you're forcing me to listen to vinyl.
sorry
But quite easy do do it yourself ? This is all not even in the SMD domain. Just input cabling.

N.b.: The box size is a bit over-measured because I don't want the power supply to influence the amplifier boards plus I want the cabling guided around all what could influence for the worse. So there's really space left in there.

Thanks Peter.

Don't worry about the vinyl.  I am more concerned with other analogue inputs such as an FM tuner et cetera.  It would be nice to (still) not have a preamplifier but to be able to use your active buffer for more than one input.  So if I was listening to some music through my DAC and then wanted to tune into a live FM concert it could be done without changing cables and all that associated messing about.

I could sort out a remote volume control whether that be a high end passive attenuator or something with the Muse chip and then I would have the flexibility I need in that department.

Reading between the lines above it seems as though you don't think more than one input could work optimally for SQ...is this true?

Regards,

Anthony
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« Reply #34 on: April 02, 2016, 12:32:37 pm »

Oh, and I forgot to ask...is this buffer a dual mono configuration or do the two channels share the power supply?

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« Reply #35 on: April 02, 2016, 12:51:36 pm »

Hi Frank,

You don't mention it specifically, but I assume if there is a headphone out then the B'ASS comes after the NOS1a in the music chain not before it?

Correct.

Quote
Perhaps add the B'ASS to your listed system?

Good idea; wasn't allowed up to yesterday, but now it os of course. Happy

Quote
Have you measured the power output delivery of the headphone output jack?

No, but it will be like this :

Supposed the input voltage (= output voltage of D/A converter) = 2VRMS = 5.6Vp-p.
P = I x U tells that this is 2.8W. But :
With the knowledge that the current is 0.5A (max), R = U/I tells :
5.6 / 0.5 = 11.2 Ohm. Thus, this can drive 11.2 Ohm (when sufficiently cooled).
We don't need 11.2 Ohm, but say 32 (as the lowest). Now I = U/R tells :
5.6 / 32 = 0.175A. Notice that this is OK because it is 0.5A capable.
Next P = I x U again :
0.175A x 5.6 = 0.98W.

Maybe this was the long(est) way, but 0.98W is the answer, when 5.6Vp-p (2VRMS) is the input and the headphone has an input impedance of 32 Ohms.


For fun the power amplifier at the other end  :

Say this is 47000 Ohms input impedance. Repeat of the above :

U/R tells :
5.6 / 47000 = 0.000119A. Notice that this is OK because it is 0.5A capable.
Next P = I x U again :
0.000119A x 5.6 = 0.000667W.



As a bonus (for Matt) when we'd drive loudspeaker drivers of 4 Ohms :

U/R tells :
5.6 / 4 = 1.4A. Notice that this is NOT OK because it is 0.5A capable.
Next P = I x U again :
1.4 x 5.6 = 7.84W.

Mind the NOT OK;
This is also not OK because the voltage is 5.6 Only. So we need gain (provided by additional components I mentioned earlier on). The PSU can provide 34Vp-p. Now assumed the transformer will be sufficient large, then :
The board can provide 3.5A. Let's say that we need 14Vp-p, mind you, of continuous power ! then :

U/R tells :
14 / 4 = 3.5A. Notice that this is NOT OK because it is 3.5A capable.
Next P = I x U again :
3.5 x 14 = 49W.
This is per SE channel. Thus, would that be differential then this is doubled : 98W (which would be 34WRMS continuous power per channel.
And if the heatsinks are large enough, this all just works; this was all tested during the NOS2 project ...

Regards,
Peter (who hopefully did not make too many math mistakes)
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« Reply #36 on: April 02, 2016, 01:10:03 pm »

Oh, and I forgot to ask...is this buffer a dual mono configuration or do the two channels share the power supply?

Anthony,

It is shared. But this is only because I planned it like that.
From origine it all does not matter, as this springs from the 8ch design and the whole configuration is as flexible as can be (read : the number of channels serviced by a PSU really does not matter, as long as it can take it).

Please keep in mind that I am not into "audio idiocy" and that a PSU which can supply 7A or whatever it exactly is, is not going to be bothered by two channels requireing 0.000x whatever Watts.

Btw, the plus and minus can be regarded double mono (especially if I'd use separate trafo's instead of two secundaries from one ... but I don't).

Peter
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« Reply #37 on: April 02, 2016, 01:32:35 pm »

Don't worry about the vinyl.  I am more concerned with other analogue inputs such as an FM tuner et cetera.  It would be nice to (still) not have a preamplifier but to be able to use your active buffer for more than one input.  So if I was listening to some music through my DAC and then wanted to tune into a live FM concert it could be done without changing cables and all that associated messing about.

I could sort out a remote volume control whether that be a high end passive attenuator or something with the Muse chip and then I would have the flexibility I need in that department.

Reading between the lines above it seems as though you don't think more than one input could work optimally for SQ...is this true?

Anthony, not explicitly. You guys just come up with more than I planned for this. Anyway let me tell you in advance that I think the price is not super high, especially if you think about all the design efforts (and the now emerged flexibility). But this is exactly the culprit : step out of this line and design starts again.

Example about the volume : If you ask me I say "undoable". I mean, if it is not allowed to be detrimental to SQ, forget it.
However, the NOS2 design solved that, with weeks of design. Think voltage references and the output responding to that because of the design itself (which explicitly took that into account). This does not do that.
And on a side note and FYI : applying any volume in the differential domain is a challenge in itself, because there should be no deviation between the two differential channels at all (while L/R is easliy allowed to deviate 0.5dB (I say !)). So with differential any volume control is almost a no-go, unless we step back 10 years (of say Phasure) and don't know much about anything BUT that our sound is not the best of the world. Understand ?
This is also how I claim to have learned so much from the NOS2 project, never mind no NOS2 is there. I can tell right now within seconds all the things which will *not* work. But behind such seconds is weeks of thinking ...

All what is "switch" will be too high-Ohmic and therefore no good in the input. One thing I am not so very much experienced with : we are already at a reasonable (line) level. So it is not in advance of a DAC where nothing is allowed regarding switches and such. Anyway, what I would allow for almost sure is just two inputs in parallel. Maybe this is harmful, maybe it is already world-wide known that this is not allowed, but without examining it, I say it may be OK.
What is NOT OK is connecting two devices in parallel to the outputs, what many people do (like power amps + subs to the NOS1 RCA and XLR outputs which are live in parallel).

You know, I am afraid that we are "designing" ourselves more than really necessary, and that any 700 euro device as of now, becomes 1200 euros. Maybe that's OK, but ...

But anyway I now realize that I also have a digitally controlled volume ready on a PCB (f*ck, what did I not do the past 4 years ?!?). It is only that I never really worked with it (so I have the PCB and that is all -it also requires uC programming). But I recall that this too was actually a bit too difficult and it requires some sort of calibration (the differential problem, described above).

Hey, I am not against anything. But I had one purpose with it and this was just better sound from the NOS1(a). I think we now must be careful not to make it unnecessary expensive for some. But I listen ...

Regards,
Peter

PS:
Quote
But anyway I now realize that I also have a digitally controlled volume ready on a PCB
... which was for the DSD board I also have and never even bought one resistor for. So tempt me and that is in the same box too. Especially because that is voltage output and requires a buffer.
Anything else ?
swoonswoonswoon
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #38 on: April 02, 2016, 01:44:15 pm »

Is it possible for you to determine the right length of the short blaxius when positioned Nos1a and B'ass next to each other?

Hi Arjan,

Of course, if you tell me what is at the left and what at the right side ... But not at this moment because :

Quote
Else, where are the in- and outputs on the B'ass are positioned? With that knowledge I could figure out the needed length.

I am not sure yet. Of course I have something working myself in a prototype (also wooden) box, but I must determine other things more definitive, such as where the power inlet will be (and this determines a lot). So while the size of the box has been determined, the backpanel layout is not yet.

Something else could be that with the NOS1a and the B'ASS next to each other, it really could be a challenge of where to put the cabling. Mine goes upwards from the NOS1a to the B'ASS on the shelf above it. And as you can imagine that just works. When going sideways it first has to go up (or down) anyway.
Think about this ...

Peter
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #39 on: April 02, 2016, 01:52:00 pm »

My plan was to put it on top of the NOS1a. No other way possible.

 Happy
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« Reply #40 on: April 02, 2016, 01:56:19 pm »

In my setup the Nos1a has balanced BNC outputs to the balanced power amps, so 2 BNC's/Blaxius's per channel.

How will the B'ASS look like (and cost) in my situation?

Hey Stanley,

Yes, you are an exception I did not think about. And aplogies, because you actually have the best connection of all of us !

This is what I added to the original post about it :

4.
With 2x BNC-In and 2x BNC-Out. Balanced Stereo B'ASS. Output Impedance 2x 75 Ohms.
Including Headphone output stereo jack (Single Ended). Output Impedance 2.9 Ohms.
920 euros.

The price follows from the difference between RCA and normal BNC (130 euros) with the notice that I grant this situation actually 1 pair of Blaxius for free (not completely true, but anyway think of 2 pair of Blaxius for now 130 euros).
Happy to do this for you (but no obligations from your side of course).

Best regards,
Peter
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #41 on: April 02, 2016, 05:20:44 pm »

Peter,

This sounds amazing..... I've just read the thread very quickly, and now I need to read it all again.

I will need #2. Actually I would like #2 but without the headphone out, price? How do we order - email?

Paul
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« Reply #42 on: April 02, 2016, 05:26:14 pm »

Hi Peter - put me down for a #3 please

Thanks

Paul
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« Reply #43 on: April 02, 2016, 05:39:09 pm »

Quote
I will need #2. Actually I would like #2 but without the headphone out, price? How do we order - email?

Dear Paul,

I just put you on the list and by the time we're ready you will receive an invoice. No worries.

The Headphone out just comes along with it. I mean, I didn't calculate one penny for it although the connector will cost a bit. But otherwise there will be a hole in the case ...

Thanks !
Peter
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W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #44 on: April 02, 2016, 05:56:57 pm »

Peter,

Oh well in that case I will have the headphone-out, no holes please! Just the tight-a*se in me trying to save a few $$....

Paul
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« Reply #45 on: April 02, 2016, 07:04:07 pm »

I've changed my mind. Not #1 but #2 instead. Gives me more options in the event that I someday get an amp with balanced inputs. Also send and bill me for another standard length Clairixa cable(I only have one and my Intona is disappointed in me). Thanks.

(Ass)uming that B' ASS stands for Bad Ass...

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« Reply #46 on: April 02, 2016, 07:16:50 pm »

You do realize that this plunges the NOS1/1a "head first" into the audiophile headphone aficionado arena. That is no small move. XXHE PC>NOS1a>B'ASS>headphone is a less expensive platform than many already owned by some "headphonistas," particularly as it obviates the need for a separate (expensive) headphone amp. I can easily imagine people debating which high end headphones pair best with their Phasure DAC setup.

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« Reply #47 on: April 02, 2016, 09:30:32 pm »

Peter, please put me on the list for B'ASS #2.
As I am probably one of your most recently added customers, who will hopefully listen to the sound of XXHE and NOS1a next week for the first time in his life, I can imagine the improvement of SQ you described.
Regards, Richard
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« Reply #48 on: April 02, 2016, 10:34:05 pm »

Hi Peter
This sounds really exciting. Put me in for B'ASS number 3. I have the Blaxius cables but I can't find anyone here to modify and guarantee the circuit board so I'm sticking with RCA and XLR. I use both outputs for main speakers and Subs. Thanks
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« Reply #49 on: April 03, 2016, 12:00:46 am »

Peter my mistake. I meant version number 2 with RCA & XLR
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« Reply #50 on: April 03, 2016, 08:54:50 am »

Oh, and I forgot to ask...is this buffer a dual mono configuration or do the two channels share the power supply?

Anthony,

It is shared. But this is only because I planned it like that.
From origine it all does not matter, as this springs from the 8ch design and the whole configuration is as flexible as can be (read : the number of channels serviced by a PSU really does not matter, as long as it can take it).

Please keep in mind that I am not into "audio idiocy" and that a PSU which can supply 7A or whatever it exactly is, is not going to be bothered by two channels requireing 0.000x whatever Watts.

Btw, the plus and minus can be regarded double mono (especially if I'd use separate trafo's instead of two secundaries from one ... but I don't).

Peter


Hi Peter,

My concern, whether founded or not, is more to do with the current for the left channel being sourced from the same power supply as the current for the right channel, and they being effectively "joined".  Whether that power supply can keep up or not is really beside the point (my point anyway), but the pre-amps and buffers that I have heard that I have liked have been dual mono designs from input to output...which may be a coincidence...but that is what I have liked.

Regards,

Anthony
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« Reply #51 on: April 03, 2016, 09:13:31 am »

Don't worry about the vinyl.  I am more concerned with other analogue inputs such as an FM tuner et cetera.  It would be nice to (still) not have a preamplifier but to be able to use your active buffer for more than one input.  So if I was listening to some music through my DAC and then wanted to tune into a live FM concert it could be done without changing cables and all that associated messing about.

I could sort out a remote volume control whether that be a high end passive attenuator or something with the Muse chip and then I would have the flexibility I need in that department.

Reading between the lines above it seems as though you don't think more than one input could work optimally for SQ...is this true?

Anthony, not explicitly. You guys just come up with more than I planned for this.

Sorry Peter...I hope you understand that I am just asking for what will suit my situation...and that this seems to be the time to do it.  If I can get the basis for a two input - one output B'Ass with or without volume control I can modify it to suit my purposes...but a single input B'Ass does not work for me because I want to listen to FM as well as my NOS1.



Example about the volume : If you ask me I say "undoable". I mean, if it is not allowed to be detrimental to SQ, forget it.
However, the NOS2 design solved that, with weeks of design. Think voltage references and the output responding to that because of the design itself (which explicitly took that into account). This does not do that.
And on a side note and FYI : applying any volume in the differential domain is a challenge in itself, because there should be no deviation between the two differential channels at all (while L/R is easliy allowed to deviate 0.5dB (I say !)). So with differential any volume control is almost a no-go, unless we step back 10 years (of say Phasure) and don't know much about anything BUT that our sound is not the best of the world. Understand ?


I think I understand your position.  I also think that I can get a good sounding passive or active volume control sorted for myself if you are not willing to do it, so that is not an end game.  But two inputs for the B'ass would be so, so convenient in my situation...



This is also how I claim to have learned so much from the NOS2 project, never mind no NOS2 is there. I can tell right now within seconds all the things which will *not* work. But behind such seconds is weeks of thinking ...

All what is "switch" will be too high-Ohmic and therefore no good in the input. One thing I am not so very much experienced with : we are already at a reasonable (line) level. So it is not in advance of a DAC where nothing is allowed regarding switches and such. Anyway, what I would allow for almost sure is just two inputs in parallel. Maybe this is harmful, maybe it is already world-wide known that this is not allowed, but without examining it, I say it may be OK.


Two input would be fantastic...two BNC and I could change the output of the FM Tuner to BNC also.



You know, I am afraid that we are "designing" ourselves more than really necessary, and that any 700 euro device as of now, becomes 1200 euros. Maybe that's OK, but ...

1200 euros works just fine for me.  A used version of the active buffer I am searching for (they seem very rare used) will go for more than that, and it does just the same thing as your B'Ass box...current...but with multiple inputs and a fantastic passive attenuator.



But anyway I now realize that I also have a digitally controlled volume ready on a PCB (f*ck, what did I not do the past 4 years ?!?). It is only that I never really worked with it (so I have the PCB and that is all -it also requires uC programming). But I recall that this too was actually a bit too difficult and it requires some sort of calibration (the differential problem, described above).


That solution sounds excellent, if you can pull it off.



Hey, I am not against anything. But I had one purpose with it and this was just better sound from the NOS1(a). I think we now must be careful not to make it unnecessary expensive for some. But I listen ...


Much appreciated Peter.  Perhaps two versions:  one as you propose just for single analogue input systems;  a second unit for multiple analogue inputs, perhaps with remote volume control.



PS:
Quote
But anyway I now realize that I also have a digitally controlled volume ready on a PCB
... which was for the DSD board I also have and never even bought one resistor for. So tempt me and that is in the same box too. Especially because that is voltage output and requires a buffer.
Anything else ?
swoonswoonswoon

I can't think of anything else.
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« Reply #52 on: April 03, 2016, 09:51:56 am »

Hi Anthony,

Let's start with you telling me what this fantastic attenuator is. Next I will get one myself and build it in and try it. Some result will come from that, but you are going to buy that version anyway. If you're okay with this to begin with, we may proceed with this :

Still assumed that two parallel inputs are not detrimental to anything (but maybe let's cause only one source to be active with the notice that the NOS1(a) being active without sound will be odd but won't create more noise than this other source (?)) in the one input could be the high grade attenuator while in the other input there's nothing.
For you this means that you can attenuate your FM signal, while for others it means they can try to use it for their NOS1(a) or whatever DAC they use. If no difference is perceived then these people obviously will use that input, and if they think it is for the worse, they just don't use that input but the other one - the direct one.

I know, this all does not sound very decent up to "illegal" but if it works out, it is better than a switch in the signal path.

Might you know such a best attenuator that comes with a remote, don't hesitate to mention it.
All I know is that in the final stage of the development of the NOS1 I spend IIRC 8 months to create an attenuator which did not kill the sound (to so called "dead bird") and that I gave up on that in the end and started producing the (say) current NOS1. And hey, this included obtaining a 1200 euro attenuator for SE only (balanced was 1800 IIRC). I still have that ...

So unless things changed, our chances are zero. WHICH does not mean that it is not allowed to attenuate this other source. Actually it is a GREAT idea.

Uhm ... ehh ... The next step would be to make an input selector in that indirect path. But now things may get out of hand because some source will require the D/A converter and some do not. And there's only one source going to the D/A converter ... the PC.

To be clear : I am not proceeding on that digital attenuator I talked about and certainly not the DSD board. It is all too much trouble (with completely unknown results). But what I described above I really like.
Yes ...

??

Peter

PS: Don't complain that the case will get larger. 1eye
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« Reply #53 on: April 03, 2016, 10:35:03 am »

Peter,

I will send you an email with the attenuators that I am contemplating.  There are three that I would try at this stage...depending on how they would be used.

Cheers,

Anthony

PS:  Thanks for even humouring me with this stuff...it is very much appreciated!


PS: Don't complain that the case will get larger. 1eye


hahaha...no I will not complain.
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« Reply #54 on: April 03, 2016, 10:46:22 am »

@acg Curious about your list of 3 attenuators also.  I also use attenuators, with the DVD/Bluray player, and also with the Mac Mini --> NOS1a.  I've seen considerable praise for autoformer and LDR based designs, but haven't tried them myself.
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« Reply #55 on: April 03, 2016, 10:54:57 am »

Quote
I've seen considerable praise for autoformer and LDR based designs, but haven't tried them myself.

And hey, this included obtaining a 1200 euro attenuator for SE only (balanced was 1800 IIRC). I still have that ...

So that. yes
But notice that this wasn't the DIY stuff. So it was (or still is ?) readily built, including a nice display and remote.
And please notice that back at the time (2010 I guess) I did not even know really much about the importance of differential (balanced) needing to be 100% the same, while this light stuff - now I think of it - won't be "the same" at all. I recall that it even requires some means of calibration and that the leds will deviate from that over time.

Btw, there's nothing much special in LDR means. Not if you compare it with today's possibilities (ok, as I know them and which are merely about design (not really about newly available parts)).

Peter
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« Reply #56 on: April 03, 2016, 10:56:23 am »

PS:

I could also say : yeah, great !! And you know what ? I have a spare set of that. You can get it for 500 only. New in box ! Including remote and nice display and all !!

But I won't.
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« Reply #57 on: April 03, 2016, 11:00:11 am »

secret

http://www.tentlabs.com/Products/page31/page31.html

I have that on sale too !
Let's make a nice deal : 175 only.


So forget about these too. They are the worse ... (but look so nice). And do notice that this is not about the brand, so to speak. But about the million switches in the signal path (all relais).
Not theory only ... sounds super bad and after that measures the worse.
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« Reply #58 on: April 03, 2016, 11:04:24 am »

And on the positive side :

The other day I was handed a 60K pre-amplifier. Let's not talk about what I was asked to do with it, but I started measuring it.
swoon

So if we look at this then a pre-amp kind of device really may have a good chance, because this measures superbly. And when that stops to be so, it will be a no-go. It would make no sense to me, no matter how much sense it seems to make to you.

Regards,
Peter
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« Reply #59 on: April 03, 2016, 11:22:48 am »

Quote
I've seen considerable praise for autoformer

https://www.hawthorneaudio.us/forums/viewtopic.php?f=1&t=3129

Maybe someone wants to buy this one from me ?
A 100 only !!! And that is because shelf space also is $.

IOW ... this is all way waaay beyond what we are doing today. It is noisy as hell, shows no dynamics at all, rolls off like I don't know what, is unlinear as can be and belongs in a museum.

So forget all transformer based attennuators.

Anthony, I hope one of your ideas is left; I only mention these to be ahead of things instead of nagging afterwards.
And (Matt) never ever hunt hear-says. First investigate the leage you're in and in what leage that "shouting" is. It can be really fine, but always needs thorough investigation.

Regards,
Peter
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« Reply #60 on: April 03, 2016, 11:29:04 am »



* b'ass.jpg (7.55 KB, 197x255 - viewed 464 times.)
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« Reply #61 on: April 03, 2016, 11:32:15 am »

Happy
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*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #62 on: April 03, 2016, 12:14:24 pm »

And please notice that back at the time (2010 I guess) I did not even know really much about the importance of differential (balanced) needing to be 100% the same, while this light stuff - now I think of it - won't be "the same" at all. I recall that it even requires some means of calibration and that the leds will deviate from that over time.

http://www.tortugaaudio.com/products/ldr3x-v2-1/

This guy claims he is "approaching" 99.9% accuracy from his LDR modules ( target attenuation vs actual measured), and he has an auto-calibrate feature since the LED do deviate over time.  Still, that's not to say he has solved the fundamental issues that LDR's may have.

Regarding the need for "investigation," I agree of course.  No doubt I'm limited by my knowledge and lesser experience, which is why I like hearing from others with more of both.  I will say that a huge reason why a disproportionate amount of my audio budget goes to Phasure is that your (Peter's) standards are simply higher than everyone elses.

Should Phasure release an outboard attenuator, I'll be first in line.  I think that's the bottom line here Wink

I don't mind forgetting about those other things in the meantime.  My current solution (Benchmark DAC2) is certainly not ideal either, but at least it's already paid for and offers many other features besides.
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« Reply #63 on: April 03, 2016, 12:43:18 pm »

Peter,

For someone (I will not name him Wink) that uses a preamp, does the B'ass and/or that preamp become redundant ?

Regards,

Anonymous
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« Reply #64 on: April 03, 2016, 01:11:24 pm »

Anthony, I hope one of your ideas is left; I only mention these to be ahead of things instead of nagging afterwards.
And (Matt) never ever hunt hear-says. First investigate the leage you're in and in what leage that "shouting" is. It can be really fine, but always needs thorough investigation.

Regards,
Peter

Well, two of my ideas are still left.  I had thought of the auto former (Intact Audio would be my choice) but I would have needed convincing that its varying output impedance, non-constant resistance and the tendency of magnetics for inductance for LF changing to capacitance for HF could work in this situation.  That would have been a long shot I reckon.

The problem with any passive attenuator is that it is basically a voltage divider, whether that be discrete resistor based on a switch or relays, LDR type, or magnetics.  They all act as high pass filters and LF suffers plus they are incapable of driving any length of cable or wire. For them to work best they should be used right before the gain stage with as little pcb trace or wire following them as possible...think in centimetres rather than metres. What is the B'ass?  My understanding is that it is a gain stage or an active buffer to my way of thinking, so we have an opportunity for the best possible results from a passive attenuator if it is jammed in nice and snug before the unity gain stage.

How would I do a passive attenuator in this position?  Well, I would use sealed relays rather than switch.  These relays would of course be powered from a completely separate power source.  On top of this, this power source would only be active when the volume is being changed...for the moment of changing a relay...then shut down.  I would use Vishay VAR precision trimmed resistors and have an attenuator step of about 1.5dB just like XXHE, plus a mute function.  Note that as far as I am aware this is not like the Tent Labs attenuator (I admit that I did not look at it too hard) that you linked to Peter, and I am not sure how you used that device when you tried it, but it may well work differently immediately before the gain stage in the B'ass.  That is impossible for me to find out.

My other, and prefered option is the Muses 72320 chip.  Have you noticed them before Peter?  They also make some very good  opamps by all accounts.

Regards,

Anthony

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« Reply #65 on: April 03, 2016, 02:24:52 pm »

Quote
so we have an opportunity for the best possible results from a passive attenuator if it is jammed in nice and snug before the unity gain stage.

Anthony, I'd say this is correct. Anyway during reading your text onwards to this sentence I was thinking "but no problem in this case".
This doesn't tell it really is no problem - only that the short run of length can be in order. Mind you (please) outside of the PCB's now present. So exactly as you just said.

Peter
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Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #66 on: April 03, 2016, 02:32:20 pm »

For someone (I will not name him Wink) that uses a preamp, does the B'ass and/or that preamp become redundant ?

Alain, please pass this on to Mr Anonymous :

I don't think so;
The attenuator "undoubtedly" will fail anyway (but yet to see of course), although it may not be worse than what you are used to, Mr Anonymus. For the remainder part it should be for the better or at least it is the very best, plus all explicitly tested as matching with the NOS1(a) (not only technically but also audibly). Also, because it measures as non-existent, it should work anywhere (a bit the same as the heaphone story, where I vaguely claim it should be "a best").

And of course, if the B'ASS is taken for its volume control (now assumed it wil be in there) then it is redundant when Mr Anonymous already has a volume control to satisfaction.
But then I'm responding in a pestering kind of way ...

Give my regards,
Peter



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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #67 on: April 03, 2016, 03:54:25 pm »

Peter,

Thanks on behalf of Mr Anonymous. He is telling me that he should send his NOS1 to have it upgraded, then he will make an order for a B'ass (#2). Damn conservative he is Wink

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« Reply #68 on: April 03, 2016, 09:10:31 pm »

A #2 BNC type please for me Peter.

One question, does the B'ASS have unity (or less ) gain ?

My NOS1a is driving 8 gain clones from its balanced outputs so the current capacity of the B'ASS would be very welcome but very loud volume is -34 db in XX so extra gain would not be a good thing for my system.

Regards,
Nick.
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« Reply #69 on: April 03, 2016, 09:23:41 pm »

Hi Nick,

B'ASS is unity gain.

Regards,
Peter

Edit :
Quote
A #2 BNC type please for me Peter.
Don't you mean RCA + XLR ?
Otherwise #4 is balanced BNC ...
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #70 on: April 03, 2016, 10:34:28 pm »

A #2 XLR type please for me Peter.

One question, does the B'ASS have unity (or less ) gain ?

My NOS1a is driving 8 gain clones from its balanced outputs so the current capacity of the B'ASS would be very welcome but very loud volume is -34 db in XX so extra gain would not be a good thing for my system.

Regards,
Nick.

Oops !

Sorry I meant to say;

A #2 balanced XLR type please for me.

Thank you Peter,
Nick.
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« Reply #71 on: April 04, 2016, 06:40:26 am »

Quote
so we have an opportunity for the best possible results from a passive attenuator if it is jammed in nice and snug before the unity gain stage.

Anthony, I'd say this is correct. Anyway during reading your text onwards to this sentence I was thinking "but no problem in this case".
This doesn't tell it really is no problem - only that the short run of length can be in order. Mind you (please) outside of the PCB's now present. So exactly as you just said.

Peter

Well I hope it can work well Peter...I really do.  Thanks for even considering the VC as an option.
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« Reply #72 on: April 04, 2016, 09:08:45 am »

So ...

Yesterday's afternoon was spent for a large deal on sorting out solutions with the Muses chip.
Not unimportant side note : I have the idea that you just as well can use another ladder DAC to control the volume, but alas (although it is quite unclear, that chip looks to be an R2R ladder DAC).
Also ... no real relevant specs thar I can find in that "Japanese" style datasheet. Only the plots may tell something, but they are without real numbers anywhere while I am used to the numbers.

I only sorted out one path of solution (say with ready components) and for SE it looks that for ~225 euros for cost price of "foreign parts" something can be tested. And, this then can be tested for balanced as well (one channel), IMO. N.b.: Balanced looks to be ~100 euros more but this is not 100% clear to me yet.

I mentioned "foreign parts" because this is outside things I can arrange for myself. So the cost price tells nothing but that this is mandatory to set up a test, which btw undoubtedly (say by guarantee) will lead to a working whole.
It is more difficult to envision what more parts come along, like connectors, the wireing and regulators of various voltages. All I have seen is that all can be done with the PSU which was planned to begin with, but which possibly now require two, doing the job right, including an additional transformer. It would be end to end 2x mono, although at this moment I doubt whether this is the best to do. So FYI, you might think this works nicely but it thus assumes no common ground anywhere between the two channels of which you are not going to tell me that this stays separate at the other (poweramp) end. Then what ? I feel this brings misery only and my feelings are often correct.

In the end the work is maybe 2-3 fold of what it would have been for the original B'ASS and I envision a whole day of work to put one SE together outside of the base SMD soldering in order for the "amp". This means that this day now about equals the original price, so my mentioned 1200 was not a bad estimate at all.

BUT

For this all you would have 3 inputs as well and everything is remote controlled. The idea of having the "source" of D/A converter always connected directly, remains (that would be one of the three). But of course it can be connected to one of the controlled inputs, might one not hear a difference anyway.

I am not sure whether this would be "a best" preamp, but it could be equally good to e.g. a Pass XP-30 (uses the same chip) because it just will, measurement wise - at least for the direct connection. One thing : that XP-30 costs 16K and possibly that is because it is as good for each input.
http://www.stereophile.com/content/pass-laboratories-xp-30-line-preamplifier-measurements#DRiKWUSY2BvRCGYe.97
... Well, to be honest, the B'ASS measures better (direct connection - http://www.phasure.com/index.php?topic=3592.msg38254#msg38254 with the notice that this includes the NOS1a which is feeding the test signal).

That's it for now and only starting. So :
Disclaimer : This is all very premature and "fast". Don't pin me down on any mentioned prices.

Not sure what's next ...

Peter
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« Reply #73 on: April 04, 2016, 09:38:56 am »

My NOS1a is driving 8 gain clones from its balanced outputs so the current capacity of the B'ASS would be very welcome [...]

Nick,

In my proto-box there's currently still the switch hanging around that can add ~240mA per channel (I think I mentioned it in between the lines in the first post). So what I planned at some stage, is adding more current by means of, say, two switches (engage them both and the current is double the native). But it did not sound well. Not for me ! But I never thought of a situation like yours, where indeed it would be so that "double the drive" implies double the required current, all else being equal (read : if in my case and one 50K input impedance amp, the ~500mA is the best, then with two amps 1A should be required - well, sort of because the length of the interlink stays the same). So while I ditched the switches, I shouldn't ...

The additionally attached current ("chips") are only switched in the output signal path and I think/claim this is allowed at this higher level (of current). Measurement really shows no difference at flipping the switch (while it thus surely is audible). Side note (or not) : In my situation this additional current sounds chaotic, but this is not because of the switch; it already does with the chip nicely on the PCB like the others. Still, I can't judge the switch for that merit (of "switch").

Anyway ... thinking more inputs and what not it is not so difficult to again think "switches" (in the case). And if I do what I planned, then 2 switches plus electronics supplying the current, will cost 150 more for SE (300 for Balanced). It goes like this :

One switch can serve two "channels" and a channel is regarded one SE channel. Thus, stereo RCA (= SE, Single Ended) requires one double pole switch (think power switch sized) to attach one step of more current; with Balanced, the one switch would attach one functional channel (like the left channel) for both plus and minus of the differential channel. So it requires two switches to attach current for the left and right channel for one step of more current.
Thus two steps require 4 switches.

The switches would be at the outside of the case, reachable at any time without lifting the lid.

Peter
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« Reply #74 on: April 04, 2016, 10:22:08 am »

Peter,

I would also like my #2 to be dual-mono if you think it can be done successfully.

Paul
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« Reply #75 on: April 04, 2016, 12:44:13 pm »

It would be end to end 2x mono, although at this moment I doubt whether this is the best to do. So FYI, you might think this works nicely but it thus assumes no common ground anywhere between the two channels of which you are not going to tell me that this stays separate at the other (poweramp) end. Then what ? I feel this brings misery only and my feelings are often correct.


Peter, I am not exactly sure what you mean here.  In my situation, and I believe in yours as well with the Orelo's, the amplifiers for left channel are completely separate to the amplifiers for the right channel...true monoblocs...although they are in your case 4 amps per side and in my case six.  The only common ground between them is via the main socket into which they are plugged.

Or do you mean that this is setting things up for a nice big ground loop?

Anthony

PS:  Wow...you are already going on the Muses chip!  I feel quite guilty that I have caused all this extra work for you now...and I do apologise...but I also know that you would not be investigating this without consideration of its potential merit.  If you get a good result I think it will probably be a more saleable product especially to those not in the Phasure ecosystem.  Are you thinking of actually having two products if it works out?  For example B'Ass and B'Ass VC.
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Silverstone USB3 (isolated) >> Clairixa USB (short) >> Intona >> Clairixa USB >> 24/768 Phasure NOS1a async USB DAC, Driver v1.0.4 (4ms) -> 6 way active horn speakers (Single Ended Triodes)
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« Reply #76 on: April 04, 2016, 01:52:13 pm »

Quote
If you get a good result I think it will probably be a more saleable product

Haha, and this is eactly why you should not mention your situation with the ground, let alone mine !
So yes, for us both it would work, but for others, with one amplifier and shared ground between channels (which 99,99% of cases will be so), the ground loops emerge. Thus the ground loops emerge when at the far distance such a connection point exists (and not when it is not there, although I really must think about the mains as common point as well).

But more easy : Think about your NOS1. That already uses shared signal ground between the channels.

N.b.: I had much more text here, but I scratched it, once realizing that there's a difference between a shared signal gnd and a more "active" process on a PCB ground place. To give an example of two possites about this, both as effective for their merit :

One amplifier, differentially setup, MUST be on the same PCB.
Two amplifiers, for two channels (L/R) should NOT be on the same PCB.

... And because it is so easy to make mistakes, I made the mistake of creating one of the test PCBs at first for differential (balanced) and measuring that situation (see what I described for the Muses "test"), while when I was done with that, I connected that same PCB for L/R (easy enough, just connect different inputs and utilize the outputs differently). So I am listening all this time to a PCB with Left and Right on it. That shouldn't be the best for channel separation ...
The stupid stuff is too flexible !
haha

Anyway, one part of the scratched text was that we have buffer capacitors to not let influence the one channel the other via the PSU. This, while my earlier post writes out the overkill of the PSU in the first place. So I am nicely ignorant here.

Peter
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Removed Switching Supplies from everywhere (also from the PC).

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« Reply #77 on: April 05, 2016, 12:28:38 am »

My NOS1a is driving 8 gain clones from its balanced outputs so the current capacity of the B'ASS would be very welcome [...]

Nick,

In my proto-box there's currently still the switch hanging around that can add ~240mA per channel (I think I mentioned it in between the lines in the first post). So what I planned at some stage, is adding more current by means of, say, two switches (engage them both and the current is double the native). But it did not sound well. Not for me ! But I never thought of a situation like yours, where indeed it would be so that "double the drive" implies double the required current, all else being equal (read : if in my case and one 50K input impedance amp, the ~500mA is the best, then with two amps 1A should be required - well, sort of because the length of the interlink stays the same). So while I ditched the switches, I shouldn't ...

The additionally attached current ("chips") are only switched in the output signal path and I think/claim this is allowed at this higher level (of current). Measurement really shows no difference at flipping the switch (while it thus surely is audible). Side note (or not) : In my situation this additional current sounds chaotic, but this is not because of the switch; it already does with the chip nicely on the PCB like the others. Still, I can't judge the switch for that merit (of "switch").

Anyway ... thinking more inputs and what not it is not so difficult to again think "switches" (in the case). And if I do what I planned, then 2 switches plus electronics supplying the current, will cost 150 more for SE (300 for Balanced). It goes like this :

One switch can serve two "channels" and a channel is regarded one SE channel. Thus, stereo RCA (= SE, Single Ended) requires one double pole switch (think power switch sized) to attach one step of more current; with Balanced, the one switch would attach one functional channel (like the left channel) for both plus and minus of the differential channel. So it requires two switches to attach current for the left and right channel for one step of more current.
Thus two steps require 4 switches.

The switches would be at the outside of the case, reachable at any time without lifting the lid.

Peter


Peter hi,

This is very interesting and sounds like a perfect arrangement for my amp. A line stage with 250 to 500ma + drive potential it must drive the power amps with real authority !

In my setup taking the posertive pole of say the left channel of my amp the posertive side of the nos1a output opamp drives 2 gain clones each with 22k ohm inputs so in parallel these present just 11k ohms to the nos1a op amp. The sound from bridging and bi amping is good but I feel the input arrangement has always been a compromise. I don't really have the confidence to build a buffer for the input as getting a line designs up to the level of the nos's performance would be way too difficult for me.

What you have developed sounds like a brilliant fit. Please put me down for a switchable and balanced version, I would not really need attenuation being discussed.

Regards,

Nick

Ps  I can always use the line stage to do some arc welding when I am not using it to drive the gainclone amps  wacko
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« Reply #78 on: April 05, 2016, 11:34:15 am »

#3 for me please + the hdd with operating systems + short usb cable

Ha !
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« Reply #79 on: April 05, 2016, 11:55:14 am »

Hey, it is not allowed to order more than one thing at the time, or otherwise we get confused over here !

haha

Thank you Leo.

But B'ASS is not ready of course. Must we wait with the RAM OS and short Clairixa ?
Shipping of those is 12 euros (a bit more because UPS, as it is forbidden to use TNT Post to your place Happy Happy).

Best regards,
Peter

PS: Annecdotical : OffTopic
Back at the time we had clock upgrades. Leo wanted that too.
We shipped set #1 by TNT Post.
It did not arrive.
We shipped set #2 with the thought that this wouldn't go wrong a second time and again it was not insured.
It did not arrive.
Then I thought to explicitly insure it for 500 (IIRC the upgrade was 120 or so ?);
Now we hoped that it would not arrive and claim 500 so we could have a nice dinner together (3x 120 is 360, so ...).
It did not arrive.
Ha !
Leo then collected the upgrade himself.
I claimed the 500 and receive that indeed (after a 100 emails, but alas).
The dinner, though, never happened.
evil
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« Reply #80 on: April 05, 2016, 12:25:17 pm »

Please send the harddisk and usb cable first. But do insure them, I still see the same delivery persons around....

If we keep this up it could turn out to become a really great & expensive dinner after a while Happy
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« Reply #81 on: April 05, 2016, 12:55:09 pm »

So you're suggesting that I again use TNT Post, but insure it for 500 again.
I better make two separate packages of it !! clapping
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« Reply #82 on: April 06, 2016, 05:02:15 am »

Peter,

Wow.  I've been off the forum for less than a week and come back to this. Please sign me up for 1 of #3 (BNC stereo) along with the short Blaxius cable needed.

Can I confirm this is what I need for current and future setup. 

Current: NOS 1a with psuedo Blaxius (RCA output using Blaxius cable with adapters on both ends) going to RCA inputs on Linkwitz ASP.  Input impedance of the ASP is 10K ohms, and output impedance 196 ohms (not sure if that matters).  The B'ASS would be between the DAC and ASP and I would use BNC to RCA adapters on all Blaxius cables.

Future: Upgrade to NOS 1a 75B (I have the kit) and go direct from DAC to Orelo BNC input, with B'ASS in between.

Ramesh
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« Reply #83 on: April 06, 2016, 08:58:37 am »

Hi Ramesh,

Yes, that is all fine.

Regards and thanks !
Peter
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« Reply #84 on: April 07, 2016, 10:19:55 am »

In my setup the Nos1a has balanced BNC outputs to the balanced power amps, so 2 BNC's/Blaxius's per channel.

How will the B'ASS look like (and cost) in my situation?

Hey Stanley,

Yes, you are an exception I did not think about. And aplogies, because you actually have the best connection of all of us !

This is what I added to the original post about it :

4.
With 2x BNC-In and 2x BNC-Out. Balanced Stereo B'ASS. Output Impedance 2x 75 Ohms.
Including Headphone output stereo jack (Single Ended). Output Impedance 2.9 Ohms.
920 euros.

The price follows from the difference between RCA and normal BNC (130 euros) with the notice that I grant this situation actually 1 pair of Blaxius for free (not completely true, but anyway think of 2 pair of Blaxius for now 130 euros).
Happy to do this for you (but no obligations from your side of course).

Best regards,
Peter

Hi Peter,

Thanks for making option 4. available (Balanced Stereo B'ASS).

I reread the posts of this topic to try to explain the B’ASS principle to an audio friend. It may be my lack of understanding amplification, but I don't get a clear picture of what the B'ASS does.

Excuse me for asking, but could you, in short, explain what the B’ASS exactly does to the signal arriving from the NOS1 and why the amplifiers (and subsequently the sound from the speakers) benefit from the B’ASS?

This also helps finding budget  evil

Thanks.

Regards,
Stanley
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« Reply #85 on: April 07, 2016, 08:35:37 pm »

Same situation here.
There is so much text in Peters first post, I do not really understand what this is all about.
The only thing I understand this far that some kind of SQ improvement seems to be involved.
But why would you improve SQ if you put a device between the Phasure and the Amp, in my case the headphone amp.

By the way, I use a symmetric/balanced HF-Amp since the Abyss headphone should be driven symmetric.
The amp required to drive the Abyss to its best should deliver at least 2.5 Watts better 5W at 50 Ohms impedance.

Regards, Michael
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« Reply #86 on: April 08, 2016, 11:22:21 am »

I reread the posts of this topic to try to explain the B’ASS principle to an audio friend.
[...]
Excuse me for asking, but could you, in short, explain what the B’ASS exactly does to the signal arriving from the NOS1 and why the amplifiers [...] benefit from the B’ASS?

Never try to explain anything to a friend, as this is audio; audio (at least "ours") lives by means of empirical finding with a good electrical setup as a base. Next, in my view, empirical findings should be able to be justified.
This is explicitly NOT :
I can clearly see distortion on an analyser, but hey, it sounds better !
Not Not NOT. But ten to one that any regular audio friend will claim the above. Maybe there isn't even anyone on this globe who is 100% sure that the least distortion will bring the very best sound, despite it sounds as logical as it is ...
Except for me of course.

The above actually tells half of the story because when we measure all to be "100%", there's a whole galaxy beyond what measures "best" but may sound like sh*t and what measures as "best" but sounds very good. Besides that, what is good today is sh*t next year.

That told it all.

swoon

Try to explain to random friends or people or even electrical engineers why an interlink which is capable of 6GHz of frequency over a length of 160 meters, sounds better than an e.g. 1MHz capable cable which won't do that any more at a length of 20 meters. In case the audience does not know that we tend to hear not beyond 20KHz, be sure to obfuscate that into 60KHz because of the crazies who are sure to hear that 60KHz sounds better to them, because it is in the material.
Now wait for the response.

FYI : I would not be able to fight that response either, while they will imply that I am crazy. Okay, you are, because you came up with the story, but you can always blame me for it.
... Which doesn't mean you were able to explain it ...

Of course I am making fun a little about that friend, but the story won't change because you are now my friend and I am the story teller. And that in poor English.



No amplifier is going to benefit from any B'ASS "driver" (let alone the speakers). It is the signal (towards the amplifier) which is improving;

Sadly I have no pictures of the situation, but when the "load" is too high (which means the resistance too low between signal and ground), then think like the current flowing because of that is going to influence the outgoing signal. Think like it can't flow freely any more and that a normally nice sine is going to exhibit harmonics. It could look like this, with the notice that the first picture is the reference, while the second is compromised because of too much current flowing, that not being suffciently under control :




Also notice that this is a "showcase" of what happens, and not the real situation (I just don't have picture of that, but I know the exhibit is the same).

If you look closely, you see that the 3rd (at 3000Hz), 4th and 5th harmonic not only have risen, but also are of equal height;
Compromise this signal even more, and the 2nd harmonic will also rise, a 6th will emerge of again equal height like the others and the THD figure will again be worse.

On a side note, see that the 2nd marmonic in the first picture is ~103dB down (and not ~91 as it seems). This is because the output is +12V (91 + 12 = 103).

You are used to these figures, because from the NOS1 (which is not what you see here) this is about the same (a little bit better). So what is the difference ? what you look at here is connected to an input impedane of (IIRC) 6.8 Ohms, while your power amplifier will normally have an input impedance of 47000 Ohms (or much higher).
Might you connect your NOS1(a) to such a low Impedance, you will have a virtual melt down because nothing can deal with the current flowing (wanting to flow because of this low "resistance" implied between the output wires, but that current not being available).

Still there ?
I ask, because I can see that you wonder how this is all related to the actual question ...

Supposed we act like the real audiofool, then we possibly would say that the first picture is sufficiently good enough for good sound;
I told it was the reference, but ... notice that I only said that because I can't make it better anyway. Oh, in this case I theoretically could, but do notice that the anlyser won't show better than 0.00073%, so whatever I might improve beyond that, will not be made visible by the analyser.
But does it mean that we can't improve further ?

Of course we can. But small problem : we must do it in the blind. We must start to work with theories only. Or better and back to the beginning of this post : we will now live by empirical finding, try to reason out the parameters involved and how, and proceed with that. Does it work out for the better ? then we continue that route. We do, until it stops (say, collapses). Small danger in this case : all by my ears, once we are operating beyond the analyser limits.

So remember ? Our 6GHz interlink sounds better, even at 2 meters of lenght than any audio voodoo interlink around. With no single means I could proove the difference, and the impedance - or reflection - or whatever vector (network) analyser I lack, so we have to believe in the rubbish. But don't tell there wasn't a strategy behind the Blaxius ! Same thing with Clairixa and same thing with now B'ASS;

It will be a repeat of an earlier post, but the capacity (as in capability) of the setup is causing the better sound. Thus, even with the 47000 Ohm input impedance at the other side and the "no current flowing at all", allowing for the higher current improves anyway. In the end it will spring from the same phenomenon as why the Blaxius improves so vastly, because what did that do ? ... it combines the very low capacitance with ultra high frequency capabilities into something which is well beyond what was there in the first place : something like 20 meters for 20KHz at the current which is present. Notice that varying ("improving") the parameters of the cable, does extend the length of the cable, but of course it still requires the current to drive it (so now we have two angles of current). But, this is non-sense because we are not lengthening the interlinks at all; All we do is making that theoretically possible, which has to imply that it even will be better at the short length BUT of which everybody says it is idiot to begin with (but read : at the short lenght the cable for sure can do 6GHz already).

It is for a good reason that right from the start (of this topic) I talked in terms of overkill. This is because it is exactly that, and it means that no math tells us (or at least me) that what we do here could be required or even help. Still the phenomenon of overkill in general, does help. It is only that we don't know how it works and that foremost is because we can't measure any more beyond the limits in order, which limits we already reached long ago.

In general terms we could say that I added a buffer where a buffer is not required (and there is math for that, so this is how we know).

The amp required to drive the Abyss to its best should deliver at least 2.5 Watts better 5W at 50 Ohms impedance.

Remember, P = U x I. From that follows that I = P / U. Thus :
For 2VRMS :
I = 2.5 / 5.6 = 0.446A.
or if 5W is better :
I = 5 / 5.6 = 0.983A.
This, while 500mA is at your service. This implies that sort of like the "Nick" situation, you'd need twice the current from the standard, which can just be applied.

But tell me, why would 5W be better than 2.5W while 2.5W is fine ?
IOW, you could ask your question to Abyss too. Maybe they have a similar answer, maybe they claim voodoo and maybe they say that you now can play 6dB louder.

Quote
But why would you improve SQ if you put a device between the Phasure and the Amp, in my case the headphone amp.

Well, according the principle as applied with the power amp, this should work out the same, although I'd readily agree it would be stupid to do. So there's one real solution to this only : leave out the headphone amp (why ? because B'ASS *is* a headphone amp already).
But my real advice in your case, Michael ? leave it be; it would be a typical situation that I really wouldn't know the outcome in advance and only if you have measurement figures of your amp and they show worse, it would be worth a try. And oh, I tried to find figures/graphs myself of your amp but I failed on it. Maybe one I found but I don't trust that (but doesn't look to good to me at all (for figures)).
Btw, that your headphone requires a balanced input, only implies a connector which provides that (plus some wires).

I am sure it all doesn't make it really clear, but I tried.

Best regards,
Peter
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« Reply #87 on: April 08, 2016, 12:11:44 pm »

Regarding the theoretical 3 input VC B'ASS, just clarifying something.

Input 1 could be BNC - Direct
Input 2 could be BNC - VC
Input 3 could be RCA - VC

Output could be BNC

Correct?

That would cover a lot of scenarios for myself...

So the B'ASS provides more current.  You mention if it adds too much, the sound can actually degrade.  My question is whether the "ideal amount" changes depending on the input impedance of the users amp.

For example, it sounds like your (Peters) amps have 47K ohm input impedance.  My current amps are a little lower, around 20K input impedance.  Would I possibly need to "flip the switch" for double the current?

Matt
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« Reply #88 on: April 08, 2016, 01:34:54 pm »


So the B'ASS provides more current.  You mention if it adds too much, the sound can actually degrade.  My question is whether the "ideal amount" changes depending on the input impedance of the users amp.

For example, it sounds like your (Peters) amps have 47K ohm input impedance.  My current amps are a little lower, around 20K input impedance.  Would I possibly need to "flip the switch" for double the current?

Matt

Excellent question.  In my situation the B'ass will be driving 6 channel valve amplifiers with passive line level crossovers in front, so really it will be driving the electronic filters which I imagine will be quite a variable impedance load for the B'ass perhaps as low as 5k.
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« Reply #89 on: April 09, 2016, 11:12:14 am »

Peter

I do not know really why the juice is needed for the Abyss. The consensus seems to be that the more juice the more effortless it can reproduce. At least that is what the manufacturer said.

Regarding the BASS.... can you build it with a balanced Headphone output? For the HIFI headphone community, this is pretty much standard these days.

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« Reply #90 on: April 09, 2016, 11:28:14 am »

Hi Michael,

As I said, this is a matter of the proper connector;
It could be a good idea to show me such a connector / output terminal. Can you do that ?

And btw, would you require a volume control ?
Don't say Yes because you will always like that, because it *will* be detrimental to SQ for sure; there's nothing to do about that. But if you use it today with your amp, then it should only be better (the volume I plan to use).
Without is and remains the best.

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Peter
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« Reply #91 on: April 09, 2016, 11:30:58 am »

Input 1 could be BNC - Direct
Input 2 could be BNC - VC
Input 3 could be RCA - VC

Output could be BNC

Correct?

Yes, why not. Happy

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« Reply #92 on: April 09, 2016, 05:31:53 pm »


As I said, this is a matter of the proper connector;
It could be a good idea to show me such a connector / output terminal. Can you do that ?


Peter,

It will either be dual 3-pin XLR or single 4-pin XLR. My headphone cables require dual 3-pin XLR, is this possible instead of the SE jack?

Paul
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« Reply #93 on: April 09, 2016, 06:06:39 pm »

Yes Paul, of course.

But the "either" is nothing I really like (if so then so, but ...).
Isn't there a real standard ?

Peter
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« Reply #94 on: April 09, 2016, 06:19:05 pm »

For example, it sounds like your (Peters) amps have 47K ohm input impedance.  My current amps are a little lower, around 20K input impedance.  Would I possibly need to "flip the switch" for double the current?

No no, I didn't forget this; I was just busy whole day.

Yes, I'd say so, but very very difficult to guarantee because the forces at work are from reasoning only anyway (see earlier post from yesterday).

I think we must try to envision that this is all a bit of "crazy" because now we are trying to extend the DAC to what's behind it (in the realm of influencing). It feels like a kind of new dimension. Thus, each DAC manufacturer (designer) just does something he likes best for his own device and maybe he thinks of "let's also try to drive power amplifiers" and then thinking of the length of interlink (possibly) involved (this is the only thing I did when the NOS1 was developed and the explicitly of that was quite new (IIRC).
It is also difficult because of being a mix of everything. It's not only about connecting a power amp as such but it is also about the thus never amplified voltage (a pre-amp usually also has some gain), it is about the length of interlink, but it is now also about the end stage when it acts as Headphone amp and somehow I see all coming together.
Should be the wrong idea, right ?
Well, wait until I make it poweramp as well. Haha (but really for another day, with the notice that people may recall that I actually already did (see NOS2 topic)).

Peter
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« Reply #95 on: April 10, 2016, 10:47:27 am »

Peter

The typical way to connect a headphone in a balanced way is 2 ways. You can use
- one 4 pin Neutrik XLR
or
- two 3 pin Neutrik XLR
connectors

See here a picture of a implementation by Violectric for 4 pin:
http://www.violectric.de/produktdetails-de/hpa-v281.html
and
http://www.wellsaudio.com/products/headphone-amplifiers
for a 3 pin hybrid implementation

I can tell you people are currently spending crazy money for headphone amps. The bar is now going towards 15000 Euros for the top models.

Regards, Michael
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« Reply #96 on: April 10, 2016, 10:51:10 am »

Regarding the question if a volume control is needed.
Well i thing the volume control is potential one of the weakest links in a headphone amp.
Violectric is using stepped VC and when you look at the one from Weiss, you can an idea how much work people can put to improve these things.
I think volume control per se is not needed, it is just a question of ease of use.
I have to try to work a bit with the XXHighend Digital volume to see how good it works for me. So far I have not been using it very often to be honest.
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« Reply #97 on: April 10, 2016, 01:10:45 pm »

Hi Peter - just to say that I do not require any Blaxius with my B'ASS unit. I have some coax plugs and crimper so I will make up some cables of exactly the length I require.

Cheers

Paul
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« Reply #98 on: April 11, 2016, 06:47:16 pm »

No cables necessary!! Wink


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« Reply #99 on: April 25, 2016, 05:25:57 pm »

The typical way to connect a headphone in a balanced way is 2 ways. You can use
- one 4 pin Neutrik XLR
or
- two 3 pin Neutrik XLR
connectors

See here a picture of a implementation by Violectric for 4 pin:
http://www.violectric.de/produktdetails-de/hpa-v281.html
and
http://www.wellsaudio.com/products/headphone-amplifiers
for a 3 pin hybrid implementation

Hi Michael,

I have a couple of questions :

Why is that Violectric having two jack plug outputs ? Is that for balanced left and balanced right or something ?
Or is this just so that two people can listen ?

About the Wells, why do you call that a "3 pin hybrid" implementation ? This with the notice that the page you link to seems not to exist ...
(and I suppose it has 2x 3pin XLR)

Thank you in advance for answers,
Regards,
Peter
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« Reply #100 on: April 26, 2016, 10:03:33 am »

Peter,

This is the correct link:
http://www.wellsaudio.com/headtrip/

Paul
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« Reply #101 on: April 27, 2016, 02:07:57 pm »

Hey Peter, I'm considering going bi-amping in my office system. One poweramp uses XLR inputs (and has a variable gain control - not an attenuator [Edit: Actually, I think it is a 'simple' attenuator - think some of the reviewers of the Einstein poweramp in question are mistaken]), the other has RCA inputs. Would it be OK using both the XLR and RCA outputs of a #2 B'ASS simultaneously without too much degradation to the sound?

(Sorry if you've already answered - couldn't find it.)

Edit: And when are you going to start taking orders? We've been waiting since the 1st April you know!

Mani.
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XXHighEnd: 2.07 / Minimize OS / Engine#4 Adaptive / DB=4096 / Q1=0 /  xQ1=1 / Q3,4,5=0 / SFS=1.00 / XTweaks = 43, 100, 0, 0, 1 / Straight Contiguous / Clock Resolution = 1ms / Scheme 3-5 (low/realtime) / 16x Arc Prediction / *Peak Extend ON* / Unattended
Main System: Phasure NOS1a B75 G3  -> Thöress/Elrog 300B mono amps -> Tune Audio Anima horn speakers
Office System: Phasure NOS1a G3  -> 'The Truth' preamp -> Consonance/Elrog 211 mono amps -> Impulse H2 horn speakers
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« Reply #102 on: April 27, 2016, 04:31:55 pm »

Mani,

Using the parallelled outputs is not optimal, but people do it more often (without me knowing). It is not really forbidden anyway.

Most of the time I have been waiting for cabinet issues at that wood worker, and when he finally ordered the wood, I cancelled the order (took me too long). Next I started to think "now what ?" and now we're working in a gorgeous cabinet (alumin(i)um).
If all is right in 2.5 weeks of time I'll have a protoype.

Regards,
Peter
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #103 on: April 27, 2016, 04:40:05 pm »

Still white or aluminium colour? I hope the former  Wink...

Mani.
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Audio PC: Phasure Mach II / Win 14393.0 on RAM-OS / controlled by RDC, no GPU card installed / connected directly to music server
XXHighEnd: 2.07 / Minimize OS / Engine#4 Adaptive / DB=4096 / Q1=0 /  xQ1=1 / Q3,4,5=0 / SFS=1.00 / XTweaks = 43, 100, 0, 0, 1 / Straight Contiguous / Clock Resolution = 1ms / Scheme 3-5 (low/realtime) / 16x Arc Prediction / *Peak Extend ON* / Unattended
Main System: Phasure NOS1a B75 G3  -> Thöress/Elrog 300B mono amps -> Tune Audio Anima horn speakers
Office System: Phasure NOS1a G3  -> 'The Truth' preamp -> Consonance/Elrog 211 mono amps -> Impulse H2 horn speakers
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« Reply #104 on: April 27, 2016, 06:18:19 pm »

Aluminium black anodised with some twists.
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #105 on: April 27, 2016, 06:22:37 pm »

Using the parallelled outputs is not optimal, but people do it more often (without me knowing). It is not really forbidden anyway.

Thanks Peter. I think I'll give it a go.

Actually, I think it is a 'simple' attenuator...

Well, apparently not a simple attenuator. I've just received the following info from the designer of the Einstein poweramp in question: "It's an attenuator, but not a simple one. It's  acting as a shunt and not in the signal path. So there is no loss in quality compared to a standard attenuator."

Sounds good to me  Happy

Mani.
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Audio PC: Phasure Mach II / Win 14393.0 on RAM-OS / controlled by RDC, no GPU card installed / connected directly to music server
XXHighEnd: 2.07 / Minimize OS / Engine#4 Adaptive / DB=4096 / Q1=0 /  xQ1=1 / Q3,4,5=0 / SFS=1.00 / XTweaks = 43, 100, 0, 0, 1 / Straight Contiguous / Clock Resolution = 1ms / Scheme 3-5 (low/realtime) / 16x Arc Prediction / *Peak Extend ON* / Unattended
Main System: Phasure NOS1a B75 G3  -> Thöress/Elrog 300B mono amps -> Tune Audio Anima horn speakers
Office System: Phasure NOS1a G3  -> 'The Truth' preamp -> Consonance/Elrog 211 mono amps -> Impulse H2 horn speakers
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« Reply #106 on: April 27, 2016, 06:23:52 pm »

black

Noooooo  Sad

Mani.
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Audio PC: Phasure Mach II / Win 14393.0 on RAM-OS / controlled by RDC, no GPU card installed / connected directly to music server
XXHighEnd: 2.07 / Minimize OS / Engine#4 Adaptive / DB=4096 / Q1=0 /  xQ1=1 / Q3,4,5=0 / SFS=1.00 / XTweaks = 43, 100, 0, 0, 1 / Straight Contiguous / Clock Resolution = 1ms / Scheme 3-5 (low/realtime) / 16x Arc Prediction / *Peak Extend ON* / Unattended
Main System: Phasure NOS1a B75 G3  -> Thöress/Elrog 300B mono amps -> Tune Audio Anima horn speakers
Office System: Phasure NOS1a G3  -> 'The Truth' preamp -> Consonance/Elrog 211 mono amps -> Impulse H2 horn speakers
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« Reply #107 on: April 28, 2016, 02:22:12 am »

Actually, I think it is a 'simple' attenuator...

Well, apparently not a simple attenuator. I've just received the following info from the designer of the Einstein poweramp in question: "It's an attenuator, but not a simple one. It's  acting as a shunt and not in the signal path. So there is no loss in quality compared to a standard attenuator."

Sounds good to me  Happy

Mani.

Hi Mani,

Which Einstein Amp do you have?  Is it OTL? 

If the amp varies gain as a method of attenuation then it probably uses some form of variable cathode shunt.  In every schematic that I have seen the current in the signal path must flow in a loop that passes through the cathode, so if that is the case then the attenuator really is in the signal path even though it is not in the "direct" signal path that you would expect unless you marked the current flow loops. 

Semantics I know, sorry.  The new PSAudio preamp does something similar with its attenuation by varying the gain of the input tube with use of (I assume) a variable cathode shunt.  This may be the very least damaging form of volume attenuation currently available, but not many are doing it and it is not that easy to develop as far as I can tell.

Sorry for the off-topic Peter, but it is only a little off-topic because we are talking about volume attenuation.

Cheers,

Anthony
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XXHighEnd 2.05 RAM-OS (W10586 RAM)
Engine#4 Adaptive Mode / Buffer 4096 / Q1/3/4/5 = 14/1/1/1 / xQ1 = 1 / Processor Core Appointment Scheme = Core 1-3 / PlayerPrio = Low / ThreadPrio = RealTime / ClockRes = 1ms / Not Switch during playback = off / Xtweaks Balanced Load = 64 / Nervous Rate = 1 / Cool when idle = 1 / Provide stable power = 1 / Utilize cores always = 1 / Time Stability = Not Stable / Time Performance Index = Not the best / SFS 0.12MB Max 20MB / Straight Contiguous / Include Garbage Collect = on / Start Playback during conversion = off / Do not start playback at all = off / Copy to XX-drive by standard = on / Always clear Proxy before Playback = on / Stop Remaining Desktop Services = on / Stop Remaining Services = on / Stop WASAPI Services = on / Stop W10 Services = off / Keep LAN Services = on / Persist = on / Use Remote Desktop = on/ Custom Upsampling / Minimize OS = on / Peak Extend = off / Unattended

Audio Chain
Silverstone USB3 (isolated) >> Clairixa USB (short) >> Intona >> Clairixa USB >> 24/768 Phasure NOS1a async USB DAC, Driver v1.0.4 (4ms) -> 6 way active horn speakers (Single Ended Triodes)
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« Reply #108 on: April 28, 2016, 08:46:06 am »

Hey Anthony, it's the OTL... in my dreams! Actually even in my dreams, I'm not sure I'd want such an amp for an office system. A totally gorgeous piece of kit though.

No, I bought a used Einstein 'Light in the Dark Mk II'. I didn't need it - I've already got a couple of really nice amps sitting around (the nicest probably being Bert's BD30-SPR monos, which I currently use to drive my K-1000 headphones). I sold my Berning Siegfried amp a couple of years and I think I just miss having a component with valves in it! (Actually my Thöress phono stage has valves, but that doesn't count.)

I think the attenuator is simpler than you're suggesting. The recommendation is to use the amp's XLR inputs because it's a truly balanced amp design. The amp also has two sets of RCA inputs per channel - one in +ve phase and one in -ve phase (so essentially connected directly to pins 2 and 3 of the XLR inputs respectively). So if you're using these inputs, you can change the phase by using one or the other input. Now, these RCA inputs can also be used as line-level outputs for multi-amping. If you do this, then the attenuator control will attenuate these outputs too, as well as the XLR input.

So it seems like a more straight forward setup than the one you suggested.

Mani.
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Audio PC: Phasure Mach II / Win 14393.0 on RAM-OS / controlled by RDC, no GPU card installed / connected directly to music server
XXHighEnd: 2.07 / Minimize OS / Engine#4 Adaptive / DB=4096 / Q1=0 /  xQ1=1 / Q3,4,5=0 / SFS=1.00 / XTweaks = 43, 100, 0, 0, 1 / Straight Contiguous / Clock Resolution = 1ms / Scheme 3-5 (low/realtime) / 16x Arc Prediction / *Peak Extend ON* / Unattended
Main System: Phasure NOS1a B75 G3  -> Thöress/Elrog 300B mono amps -> Tune Audio Anima horn speakers
Office System: Phasure NOS1a G3  -> 'The Truth' preamp -> Consonance/Elrog 211 mono amps -> Impulse H2 horn speakers
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« Reply #109 on: April 28, 2016, 09:21:48 am »

No, not off topic at all. I take it for granted that the Attenuation will degrade anyway, unless indeed it is voltage regulating. But that needs a completely different design and is out of the question.

So it sure *is* a matter of obtaining ideas. And anyway, my first (and last ?) idea is on its way - due next week - so I can try it for measurement results. But really, I have not *any* hopes at all, plus that it isn't necessary for anything (it's necessary for nothing). And the headphone people ? they are used to it already. Soooo .... buuuut ... it is a matter of doing it the best possible way with the super clear advice that the digital attenuation of XXHighEnd should be used BUT that the volume should (and easily can) be used for TV etc. input. That looks harmless to me. Right ?

Peter
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #110 on: April 28, 2016, 10:21:41 am »

Hey Anthony, it's the OTL... in my dreams! Actually even in my dreams, I'm not sure I'd want such an amp for an office system. A totally gorgeous piece of kit though.

No, I bought a used Einstein 'Light in the Dark Mk II'. I didn't need it - I've already got a couple of really nice amps sitting around (the nicest probably being Bert's BD30-SPR monos, which I currently use to drive my K-1000 headphones). I sold my Berning Siegfried amp a couple of years and I think I just miss having a component with valves in it! (Actually my Thöress phono stage has valves, but that doesn't count.)

I think the attenuator is simpler than you're suggesting. The recommendation is to use the amp's XLR inputs because it's a truly balanced amp design. The amp also has two sets of RCA inputs per channel - one in +ve phase and one in -ve phase (so essentially connected directly to pins 2 and 3 of the XLR inputs respectively). So if you're using these inputs, you can change the phase by using one or the other input. Now, these RCA inputs can also be used as line-level outputs for multi-amping. If you do this, then the attenuator control will attenuate these outputs too, as well as the XLR input.

So it seems like a more straight forward setup than the one you suggested.

Mani.

Actually, with what you have just said I am more sure that I am right.  Clever design by the sound of it!
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Audio PC
Asrock X79 Extreme 4-M/ Xeon E5 2648L 8 Core 1.8GHz 70w TDP running at 1.2GHz with Hyperthreading On [16 cores]/ 16GB Ram / RAM-OS / *All* music files are WAV / Isolated Silverstone USB Card fed by LPS

XXHighEnd 2.05 RAM-OS (W10586 RAM)
Engine#4 Adaptive Mode / Buffer 4096 / Q1/3/4/5 = 14/1/1/1 / xQ1 = 1 / Processor Core Appointment Scheme = Core 1-3 / PlayerPrio = Low / ThreadPrio = RealTime / ClockRes = 1ms / Not Switch during playback = off / Xtweaks Balanced Load = 64 / Nervous Rate = 1 / Cool when idle = 1 / Provide stable power = 1 / Utilize cores always = 1 / Time Stability = Not Stable / Time Performance Index = Not the best / SFS 0.12MB Max 20MB / Straight Contiguous / Include Garbage Collect = on / Start Playback during conversion = off / Do not start playback at all = off / Copy to XX-drive by standard = on / Always clear Proxy before Playback = on / Stop Remaining Desktop Services = on / Stop Remaining Services = on / Stop WASAPI Services = on / Stop W10 Services = off / Keep LAN Services = on / Persist = on / Use Remote Desktop = on/ Custom Upsampling / Minimize OS = on / Peak Extend = off / Unattended

Audio Chain
Silverstone USB3 (isolated) >> Clairixa USB (short) >> Intona >> Clairixa USB >> 24/768 Phasure NOS1a async USB DAC, Driver v1.0.4 (4ms) -> 6 way active horn speakers (Single Ended Triodes)
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« Reply #111 on: April 28, 2016, 10:53:10 am »

No, not off topic at all. I take it for granted that the Attenuation will degrade anyway, unless indeed it is voltage regulating. But that needs a completely different design and is out of the question.

So it sure *is* a matter of obtaining ideas. And anyway, my first (and last ?) idea is on its way - due next week - so I can try it for measurement results. But really, I have not *any* hopes at all, plus that it isn't necessary for anything (it's necessary for nothing). And the headphone people ? they are used to it already. Soooo .... buuuut ... it is a matter of doing it the best possible way with the super clear advice that the digital attenuation of XXHighEnd should be used BUT that the volume should (and easily can) be used for TV etc. input. That looks harmless to me. Right ?

Peter

Looking forward to what you have concocted.
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Audio PC
Asrock X79 Extreme 4-M/ Xeon E5 2648L 8 Core 1.8GHz 70w TDP running at 1.2GHz with Hyperthreading On [16 cores]/ 16GB Ram / RAM-OS / *All* music files are WAV / Isolated Silverstone USB Card fed by LPS

XXHighEnd 2.05 RAM-OS (W10586 RAM)
Engine#4 Adaptive Mode / Buffer 4096 / Q1/3/4/5 = 14/1/1/1 / xQ1 = 1 / Processor Core Appointment Scheme = Core 1-3 / PlayerPrio = Low / ThreadPrio = RealTime / ClockRes = 1ms / Not Switch during playback = off / Xtweaks Balanced Load = 64 / Nervous Rate = 1 / Cool when idle = 1 / Provide stable power = 1 / Utilize cores always = 1 / Time Stability = Not Stable / Time Performance Index = Not the best / SFS 0.12MB Max 20MB / Straight Contiguous / Include Garbage Collect = on / Start Playback during conversion = off / Do not start playback at all = off / Copy to XX-drive by standard = on / Always clear Proxy before Playback = on / Stop Remaining Desktop Services = on / Stop Remaining Services = on / Stop WASAPI Services = on / Stop W10 Services = off / Keep LAN Services = on / Persist = on / Use Remote Desktop = on/ Custom Upsampling / Minimize OS = on / Peak Extend = off / Unattended

Audio Chain
Silverstone USB3 (isolated) >> Clairixa USB (short) >> Intona >> Clairixa USB >> 24/768 Phasure NOS1a async USB DAC, Driver v1.0.4 (4ms) -> 6 way active horn speakers (Single Ended Triodes)
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« Reply #112 on: May 08, 2016, 12:30:01 pm »

Hi all,

What you see below is the case as I intend it now.
We really tried to make it look beautiful with the idea that cost is no object (hopefully some will agree).


Outside footprint is 23 x 23cm / 9.2 x 9.2". Height is 7.4 cm / 3".
The case is all 6mm aluminium, except for the back plate which is 2mm.
Cooling is provided by means of heatsinks at the sides and a large vent in the cover.


This is not all decoration since it is also a headphone amp. So of course there are a few outputs at the front (4 pin balanced + 6.5mm jack).
The switches are for attaching more of the internal amplifiers. One switch can attach one additional level of "amp" :
- with SE amplification for the Left and Right channel at the same time (a total of 4 additional amp levels possible);
- with differential amplification (balanced) for Plus and Minus at the same time for one channel (a total of 2 additional amp levels possible).


The back presents two hybrid XLR outputs (normal XLR + 6.5mm jack - thus Left / Right balanced).

There are also Inputs and Outputs for RCA and Inputs and Outputs for 75 Ohm BNC.

A rough description :

One of the inputs will connect directly to an output of choice (but is amplified for current under way); the remainder of the inputs can be input selected and is subject to volume control. This is the lesser path, but say for the convenience of connecting a TV or radio for input. Input sensitivity is not really arranged for, but the volume control can be set to memorize the level for the separate input channels.



Questions ?
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #113 on: May 09, 2016, 09:51:57 pm »

Hi Peter,

About the volume control, is it remote controlled?
The input - output selection is manual?

About the input - output selection I am not so sure what it means. I my case the NOS1a output will be on the BNC inputs.
From there I can select or the BNC outputs (on the back) to the amplifiers or headphone 6.5 mm jack (on the front) for my headphone.
So I can switch between those two outputs, and both will to use the higher path for best SQ? Or just one of them?

Next I could also connect via RCA my TV and switch again to the amplifiers or headphone but via the lesser path with volume control.

Is that how it will work?

The design looks great!

About the title, is it still the cheapest upgrade?

Regards, Arjan
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Music Server (old PC) RDC to Mach II Stealth 10586.0 RAM-OS / no videocard / Engine#4 Adaptive Mode / Q1/3/4/5 = 14/0/1/0/ Q1Factor = 3 (Dev.Buffer = 4096) / ClockRes = 1ms / SFS = 2 Mx = 60 Straight Contiguous / Playerprio = Low / ThreadPrio = High / Scheme = 3-5 / Unattended / Minimize OS / PeakExtend off / Custom High 25010 / 16x Upsampling / XTweaks 29,100,1,0,1/ --> mobo USB --> Clairixa 80 cm --> Intona --> Clairixa 10 cm --> NOS1a 75B --> Blaxius --> bnc amps Jadis JA30 --> Speakers
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« Reply #114 on: May 10, 2016, 09:19:53 am »

Hi there Arjan,

Cheapest upgrade ? well, what to say. Maybe not anymore. But hopefully the best looking one ?

Quote
About the volume control, is it remote controlled?

Yes. But maybe one of those knobs is able to turn as well.
The stupid thing is, the gear I need for this - ordered the 24th of April - still did not arrive from China. DHL tracking number does not exist, so I just can't test things.

Quote
The input - output selection is manual?

No, although it can be.
(same story)

Quote
I my case the NOS1a output will be on the BNC inputs.
From there I can select or the BNC outputs (on the back) to the amplifiers or headphone 6.5 mm jack (on the front) for my headphone.

Arjan, this is as vague as can be;

Let's first observe that this was designed as what we just as well can call a buffer. In your case BNC in and BNC out - done.
Then I was so smart (maybe not) to see that there can also be a headphone output. So for fun I "designed" that in. This really went without much thought about the exact how, but the least we can do is switch off the normal amplifiers and stick in that headphone jack. Right ?

Well, not so right, once you start to think about the other options surfacing, like inputs and also outputs. I mean, if I for the life of me couldn't let sound the BNC output good when it was there in parallel with e.g. RCA (and which is logic because the output impedance is molested again) then how should all this work ? Well, one thing for sure :

There is one output only. Thus, it is not so that the outputs can be selected. Thus your situation again : BNC in and BNC out and that's it. This means that all the other connectors are for inputs ...

Sure ?
No, of course not, because the dreaded headphone outputS are there as well. Mind you, three of them (4 pin XLR, Stereo Jack, and L/R XLR+Jack).

So what is this now ? A headphone amp ??

Although I know it can be done, I can not envision exactly how because I don't have that input selection stuff or anything. And, nothing would be the matter for 100% sure, IF that BNC connection did not exist. But it does - and actually most of us have precisely that.
So what needs to be done is that this needs to sound as good as without the other stuff (the headphone outputs). But say that I make an additional switch do detach the headpone outputs. Thus yes, that will be the lesser part now. That switch can also be in the normal output (say for those who don't even use speakers).

But I need the lot in my hands or otherwise I am blind ...

Thank you for the good questions.
Regards,
Peter
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #115 on: May 18, 2016, 11:13:14 am »

Peter,

Could this B'ASS be used to feed into an electrostatic (headphone) amp?

Paul
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« Reply #116 on: May 18, 2016, 01:11:01 pm »

Hi there Paul - I'm afraid not.

Peter
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #117 on: May 18, 2016, 03:17:07 pm »

Thanks, I suspected not.
Paul
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« Reply #118 on: May 20, 2016, 06:11:00 pm »








Okayyy
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #119 on: May 20, 2016, 06:15:06 pm »

Leave it like this for me  Shocked...... No paint...... Happy

 very happy
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« Reply #120 on: May 21, 2016, 01:25:09 am »

Hi Peter,

Nice looking as it is, don't paint it black. Is it still the cheapest upgrade?? Price pls.

Best regards,

Arvind
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« Reply #121 on: May 21, 2016, 09:32:49 am »

Guys,

It is virtually impossible to leave this untreated (not anodised). This is because aluminium will lose its shinyness (it oxydises) until you polish is with a cloth and next aluminium is so soft that it will scratch and becomes ugly.

Peter
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #122 on: May 21, 2016, 10:26:18 am »

Ok   Happy

And uhm in Antraciet  Wink or would it be too much trouble?

 Happy
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16GB, *Windows 10 Pro 64 bit build 14393.0* *from RAM*, music on music server / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = *0.10*  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core *3-5* / Not Switch Processors during Playback = Off/ Playback Drive *none* (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Not the best (OS from RAM issue) / Time Stability = Off (OS from RAM issue) / Custom Filter Mid 705600 / -> USB3 (Silverstone both sides isolated = Sw#3 of NOS1a = Up) -> *Clairixa USB 15cm* -> Intona Isolator -> Clairixa USB 0.70m -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink ->> Metrum Amps ->> Metrum Acoustics ESL Open Baffle.
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« Reply #123 on: May 21, 2016, 09:02:34 pm »

A clear varnish or clear topcoat ?

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« Reply #124 on: May 24, 2016, 06:08:33 pm »


« Last Edit: May 25, 2016, 09:58:53 am by PeterSt » Logged

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W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #125 on: May 24, 2016, 06:40:56 pm »

...


* _MG_2361a.png (563.13 KB, 803x681 - viewed 371 times.)
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #126 on: May 24, 2016, 07:35:40 pm »


« Last Edit: May 25, 2016, 09:59:04 am by PeterSt » Logged

For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #127 on: May 25, 2016, 08:57:31 am »


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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #128 on: May 25, 2016, 09:57:57 am »



XLR Input completely in the left, XLR/Jack Hybrid Output next to it.

RCA Input and Output in the middle (above power inlet).

BNC Input and Output in the right.

As tried to lay out earlier on, in practice combinations are possible like BNC In and BNC Out and 2x additional RCA In. Or 1x additional RCA and 1x additional XLR In (which theoretically requires an XLR Out).

Knowing that the RCA and BNC connections require the same hole diameter, you can see yourself that it is possible to e.g. have 3 RCA Inputs and one RCA Output. Etc. etc. - as long as you keep in mind that with Single Ended In, there will be no Balanced Out (there's nothing in there which converts). Balanced In and SE Out can work, though (you lose 6dB of signal level).

For the real die-hard there's also the possibility of Balanced BNC in and Balanced BNC Out (RCA the same, for that matter). And when that is in order, there's still an extra input possibility because the large leftmost holes are Neutrik which can also contain RCA (or BNC).

Peter

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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #129 on: May 25, 2016, 10:19:03 am »


Here's something else, which I personally regard a milestone :


It is the first official "Phasure activity" of our son Paul (who is 17 years of age these days);
It suddenly appeared to him that the controls in AutoCAD mighty much look similar to airplane and battle tank controls. smirk
So it is him who did the whole technical design. And mind you, this was given to a CNC machine, and the result is flawless.

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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #130 on: May 25, 2016, 10:29:09 am »


Here's the last one in the sequence "talking to myself" :


It shows how tiny the B'ASS actually is. Disregarding the beer, the wine and the schnapps, the 3.5" harddisk tells it all.
Weight is 2.5Kg, empty.

Regards,
Peter
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #131 on: May 25, 2016, 11:45:39 am »


Here's something else, which I personally regard a milestone :

It is the first official "Phasure activity" of our son Paul (who is 17 years of age these days);

I think that is fantastic Peter, and congrats to Paul so far for the design.

Might we one day end up with an aluminium NOS1a case?
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XXHighEnd 2.05 RAM-OS (W10586 RAM)
Engine#4 Adaptive Mode / Buffer 4096 / Q1/3/4/5 = 14/1/1/1 / xQ1 = 1 / Processor Core Appointment Scheme = Core 1-3 / PlayerPrio = Low / ThreadPrio = RealTime / ClockRes = 1ms / Not Switch during playback = off / Xtweaks Balanced Load = 64 / Nervous Rate = 1 / Cool when idle = 1 / Provide stable power = 1 / Utilize cores always = 1 / Time Stability = Not Stable / Time Performance Index = Not the best / SFS 0.12MB Max 20MB / Straight Contiguous / Include Garbage Collect = on / Start Playback during conversion = off / Do not start playback at all = off / Copy to XX-drive by standard = on / Always clear Proxy before Playback = on / Stop Remaining Desktop Services = on / Stop Remaining Services = on / Stop WASAPI Services = on / Stop W10 Services = off / Keep LAN Services = on / Persist = on / Use Remote Desktop = on/ Custom Upsampling / Minimize OS = on / Peak Extend = off / Unattended

Audio Chain
Silverstone USB3 (isolated) >> Clairixa USB (short) >> Intona >> Clairixa USB >> 24/768 Phasure NOS1a async USB DAC, Driver v1.0.4 (4ms) -> 6 way active horn speakers (Single Ended Triodes)
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« Reply #132 on: May 25, 2016, 11:58:03 am »




Peter, my eyes opened up when I saw the AC inlet right next to the single ended inputs and outputs.  Obviously I don't know how everything is laid out inside, and certainly not to criticise your layout, but personally I would have them separated as much as possible, and would stick the AC in the opposite corner.

Anthony
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XXHighEnd 2.05 RAM-OS (W10586 RAM)
Engine#4 Adaptive Mode / Buffer 4096 / Q1/3/4/5 = 14/1/1/1 / xQ1 = 1 / Processor Core Appointment Scheme = Core 1-3 / PlayerPrio = Low / ThreadPrio = RealTime / ClockRes = 1ms / Not Switch during playback = off / Xtweaks Balanced Load = 64 / Nervous Rate = 1 / Cool when idle = 1 / Provide stable power = 1 / Utilize cores always = 1 / Time Stability = Not Stable / Time Performance Index = Not the best / SFS 0.12MB Max 20MB / Straight Contiguous / Include Garbage Collect = on / Start Playback during conversion = off / Do not start playback at all = off / Copy to XX-drive by standard = on / Always clear Proxy before Playback = on / Stop Remaining Desktop Services = on / Stop Remaining Services = on / Stop WASAPI Services = on / Stop W10 Services = off / Keep LAN Services = on / Persist = on / Use Remote Desktop = on/ Custom Upsampling / Minimize OS = on / Peak Extend = off / Unattended

Audio Chain
Silverstone USB3 (isolated) >> Clairixa USB (short) >> Intona >> Clairixa USB >> 24/768 Phasure NOS1a async USB DAC, Driver v1.0.4 (4ms) -> 6 way active horn speakers (Single Ended Triodes)
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« Reply #133 on: May 25, 2016, 12:54:24 pm »


Anthony, what opposite corner ?

Otherwise I don't know what you "personally" are all capable of, but maybe you should first realize the dimensions.
Also, you're a bit late with such a remark (assumed it could be useful) because nothing changed since May 8 (Re: The cheapest upgrade : B'ASS).

Anyway, of course I am thinking about that all. Btw, how bad does your NOS1 sound ?

bored

Let me know your ideas.

Peter
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #134 on: May 25, 2016, 01:39:47 pm »

The NOS1 sounds fine, but I still have to be careful about where the single ended interconnects are routed or I do pick up noise.  I purchased a right angled IEC connector to make everything fit back there and I have a piece of foam in between cables to keep power and signal separated as much as possible.  At least with the NOS1 power and signal are at right angles so inductance is minimised, but that is not so with the B'Ass.

If feasible, I would move the XLR's to the right to make room for the IEC at the far left.  The real RFI source is likely to be the transformer ringing when the diodes switch on and off, so keeping the transformer away from everything is probably a more important consideration. 

Anyway, these are just casual observations from the other side of the world Peter, and there is more to think about than the little item I raised.  I thought you were getting tired of "talking to yourself", as you put it - haha.

Anthony
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Silverstone USB3 (isolated) >> Clairixa USB (short) >> Intona >> Clairixa USB >> 24/768 Phasure NOS1a async USB DAC, Driver v1.0.4 (4ms) -> 6 way active horn speakers (Single Ended Triodes)
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« Reply #135 on: May 25, 2016, 02:46:40 pm »

Happy Happy

Just try to envision that there's more than a power inlet in there. Start thinking about the transformer. Next there are amplifiers against the side walls. Oh, there has to be a power supply somewhere.
And when some space is left, we need some input selection stuff and a bit of volume control (PCB) and that kind of thing.

This is at the best position I could think of, with the 100% clear notice (again !) that no secundary inputs (say other than from the D/A converter) will be treated as "the best ever" anyway. So when there is no BNC in order it is or XLR or RCA, and in case it is RCA it will be the rightmost ones.

I think it is optimal.
Of course not thinking in terms of a 42.5 x 42.5 case ...

Regards and thanks !
Peter

PS: My good old subject again : If you can incur for noise by means of the cable position at the back of the NOS1(a), you have another problem somewhere. Only when I lay out the lot the worst possible (like right over the transformer when testing something) I can *see* a bit of 50Hz creeping up towards -120dB (outside from what we always see). But hear something ? hahaha NEVER. By that time I'd need to let rise that noise or hum etc. with another 50-60dB. So go figure how one will be capable of that. As said, when doing something else wrong (and not the slightest).
Btw, you can bet that I am super careless with the cabling and all the testing stuff I *always* have around, here. You see the pictures often pass by ...
(also loudspeakers did not degrade for sensitivity Wink).
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Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #136 on: May 25, 2016, 06:41:51 pm »

Hi Peter,

Your b'ass design looks great. There are a lot of developments. I've red recently a very good review of an headphone amp Microzotl (1 watt) also usable for speakers with a high sensitivity. I'm using 99dbm speakers. Any change your design gets speaker terminals to connect them direct to the speakers? I'm no headphone fan. I'm very interested in the product. (Ps: How cheap is cheap?)

Regards johan


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« Reply #137 on: May 25, 2016, 06:50:15 pm »

Hi Johan,

The B'ASS will be able to drive your speakers, but there's no gain in there. This means that the output Voltage is as high as the output of your NOS1a and this is not loud enough for normal speakers. And 99dB sensitivety is quite high but still not enough to be loud enough for the ~5.6Vp-p we are talking about in this situation.

Of course you could try ...

Regards,
Peter
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #138 on: May 27, 2016, 02:28:28 pm »

Hi all,

Today I received the price for the B'ASS all aluminium case and as we could expect this is not really cheap.

Relative to the old price, 205 euros must be added for the case.

Copied from this post the prices now are :

1.
With RCA-in and RCA-Out. Single Ended Stereo B'ASS. Output Impedance 33 Ohms.
Including Headphone output jack. Output Impedance 2.9 Ohms.
815 euros.

2.
With RCA-In + XLR-In and RCA-Out + XLR-Out. Balanced Stereo B'ASS. Output Impedance 33 Ohms.
Including Headphone output stereo jack (Single Ended). Output Impedance 2.9 Ohms.
995 euros.

3.
With BNC-In and BNC-Out. Single Ended Stereo B'ASS. Output Impedance 75 Ohms.
Including a pair of Blaxius BNC Interlinks of ~ 50cm / 20".
Including Headphone output jack. Output Impedance 2.9 Ohms.
945 euros.

4.
With 2x BNC-In and 2x BNC-Out. Balanced Stereo B'ASS. Output Impedance 2x 75 Ohms.
Including Headphone output stereo jack (Single Ended). Output Impedance 2.9 Ohms.
1125 euros.



It is now my question whether everybody says "never mind because we don't pay for nice cases and we like to pay for good sound only", or that half of you now says "No" which makes the case 125 euros more expensive for the other (this really is so because of overhead costs !).
Of course I'm hoping that everybody who applied so far, stays !

The above is half of the story - the other half is about the functionality. So :

Although exactly nobody complained about making it unnecessary expensive because not wanting more inputs and preamp like functions and volume control or headphone output ... I do not want to change anything around that. All I did though, was making the case suitable for it, in case it would be necessary for some. Since yesterday I have some  electronics to start the testing of the additional functionalities (like input selection), so when I have some spare time I can start with that. swoon

If you followed this topic, then you have seen that there's also more "functionality" possible for the adding of "current amplification" (maybe it is better to call that current boost). Thus, add more "amp" by means of switches. Of course this too costs money but at least that is directly related to Sound Quality and setting the best setting for your situation.
Side note regarding this (but I think I already mentioned that a while ago) : I now have another level of amp in there, and I switched that On and never Off again. But suddenly this is related to the Linear Power Supply I now use for the PC. Maybe I could sneak in another level of amp ...

The cost for one level more is not crazy high for the components, but it costs relatively much time for the additional wiring. Think two pair of wires for 2 channels SE and 4 pairs for Differential (Balanced). This is then for one additional level which can be hooked on (or off). Make that two additional levels and we have 16 wires for Differential.
Then of course I was so "smart" to find a means of having two levels of amp by means of one switch only (a switch alone costs 11 euros) so with 4 switches we are capable of adding 8 levels (4 levels for Differential). These 8 levels really can be there (on the PCB) so when you are crazy enough you could really do it. But we can also try to be fair to those who use Differential and limit the maximum added levels to 4 (as just told, Differential can not be more than 4 anyway).

It is quite difficult to judge what the price per level is to be because it has to be done once. But also looking at the cost for components I'd say that it should be something like 125 euros for SE and double that for Differential (Differential is exactly twice all the components and work).
Hmm ... Looking back (above) at the Difference between RCA and XLR and seeing that this is 180 euros and which is for double the "amps" with 2 in there for the base, then two levels thus cost 180, or 90 per one. Now add mentioned switch at 11 and we see that 125 - 101 = 24 is left for the soldering of those wires.
I think I calculated well/fair (or consistently, if you want).

Right. Now we know a bit more about the cheapest update ever, which indeed is not so cheap any more;
If people now want input selection and volume control, this will add again. If the electronics I now have over here do their job as hoped, this adds 250-300 for Single Ended and 375-450 for Differential (all remote controlled). This is for realizing all the connections and of course the hardware, like connectors.

In between this all could be the headphone amp as such, which does not require any input selection or volume control at all. All *that* requires is just connectors of the type required and let's say that it is do or die with that, hence that someone who wants explicitly a headphone amp, just gets the connectors for that, which is diverse - see earlier posts (now you can more easily sell it, when needed).
What does that add ? when the XLR connectors are not there for other reasons already, say 45 (I have no clue, but it will be something like that, including the soldering).

I hope this is not too chaotic, but I had to write it down one way or the other, so for now this is the base. Later I can try to make a nice table of it, or something like that.

Questions ? please ask. For me, at this moment, the most important is the knowledge of how many people still apply because this is so heavily related to the price of the case.
And let's try not to forget : it might not be the cheapest upgrade any more, but it sure is the most valuable upgrade. You'll get a totally new DAC because of it.

Regards,
Peter
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #139 on: May 27, 2016, 03:22:01 pm »

Case price is fine for me Peter.
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XXHighEnd 2.05 RAM-OS (W10586 RAM)
Engine#4 Adaptive Mode / Buffer 4096 / Q1/3/4/5 = 14/1/1/1 / xQ1 = 1 / Processor Core Appointment Scheme = Core 1-3 / PlayerPrio = Low / ThreadPrio = RealTime / ClockRes = 1ms / Not Switch during playback = off / Xtweaks Balanced Load = 64 / Nervous Rate = 1 / Cool when idle = 1 / Provide stable power = 1 / Utilize cores always = 1 / Time Stability = Not Stable / Time Performance Index = Not the best / SFS 0.12MB Max 20MB / Straight Contiguous / Include Garbage Collect = on / Start Playback during conversion = off / Do not start playback at all = off / Copy to XX-drive by standard = on / Always clear Proxy before Playback = on / Stop Remaining Desktop Services = on / Stop Remaining Services = on / Stop WASAPI Services = on / Stop W10 Services = off / Keep LAN Services = on / Persist = on / Use Remote Desktop = on/ Custom Upsampling / Minimize OS = on / Peak Extend = off / Unattended

Audio Chain
Silverstone USB3 (isolated) >> Clairixa USB (short) >> Intona >> Clairixa USB >> 24/768 Phasure NOS1a async USB DAC, Driver v1.0.4 (4ms) -> 6 way active horn speakers (Single Ended Triodes)
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« Reply #140 on: May 27, 2016, 05:12:26 pm »

Ok two!  Happy
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« Reply #141 on: May 27, 2016, 05:17:52 pm »

Quote
If you followed this topic, then you have seen that there's also more "functionality" possible for the adding of "current amplification" (maybe it is better to call that current boost). Thus, add more "amp" by means of switches. Of course this too costs money but at least that is directly related to Sound Quality and setting the best setting for your situation.
Side note regarding this (but I think I already mentioned that a while ago) : I now have another level of amp in there, and I switched that On and never Off again. But suddenly this is related to the Linear Power Supply I now use for the PC. Maybe I could sneak in another level of amp ...

What do you mean by this Peter? Do you mean it becomes a  preamplifier??

 Happy
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16GB, *Windows 10 Pro 64 bit build 14393.0* *from RAM*, music on music server / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = *0.10*  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core *3-5* / Not Switch Processors during Playback = Off/ Playback Drive *none* (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Not the best (OS from RAM issue) / Time Stability = Off (OS from RAM issue) / Custom Filter Mid 705600 / -> USB3 (Silverstone both sides isolated = Sw#3 of NOS1a = Up) -> *Clairixa USB 15cm* -> Intona Isolator -> Clairixa USB 0.70m -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink ->> Metrum Amps ->> Metrum Acoustics ESL Open Baffle.
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« Reply #142 on: May 27, 2016, 06:28:08 pm »

Price is OK for me
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« Reply #143 on: May 27, 2016, 06:43:52 pm »

Ok two!  Happy

Gerard, make that "too" and I 'll believe it. Happy Happy

Quote from: PeterSt
Maybe I could sneak in another level of amp ...

Quote from: Gerard
What do you mean by this Peter? Do you mean it becomes a  preamplifier??

It already is that when taken with the Input Selection. What I meant with the "level of" is adding more current. Actually those "steps" of more "level" I am talking about when mentioning those switches to do it.

Regards,
Peter
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« Reply #144 on: May 27, 2016, 07:02:24 pm »

And Gerard, maybe you were referring to "gain" with your preamp question ? But no, it remains unitiy gain (no gain).

Peter
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« Reply #145 on: May 27, 2016, 07:19:17 pm »

Hi Peter,

I am ok with the case price. One #3 for me.

Best regards,

Arvind
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« Reply #146 on: May 27, 2016, 09:44:04 pm »

Quote
Gerard, make that "too" and I 'll believe it. Happy

Two was a bit of a joke because i was the second who said ok.  too much ! Shocked

Quote
It already is that when taken with the Input Selection. What I meant with the "level of" is adding more current. Actually those "steps" of more "level" I am talking about when mentioning those switches to do it.


And extra current that will do what?  scratching

Quote
And Gerard, maybe you were referring to "gain" with your preamp question ? But no, it remains unitiy gain (no gain).

Peter

Yes that's what i meant.  Happy

 Happy
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« Reply #147 on: May 27, 2016, 10:42:53 pm »

Case is okay for me too.
For me it will be #3 then.

If the input selection and volume control is not hurting the SQ for normal NOS1a use I am also in the market for that.
To have the possibility to connect a TV via rca.

Regards, Arjan
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« Reply #148 on: May 27, 2016, 11:07:24 pm »

Ok for me Wink
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« Reply #149 on: May 28, 2016, 02:17:56 am »

I am in for the nice case.  good

Still want version 2.

I am going to email you  directly regarding volume control.

I need no input switch because after the NOS1a + RAM-OS I'll never have need for another input. No longer relevant for me. love this
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« Reply #150 on: May 28, 2016, 08:55:22 am »

For me, at this moment, the most important is the knowledge of how many people still apply because this is so heavily related to the price of the case.

Hi Peter, the price remains OK for me. Definitely one #3 for me for now. (I'll send you a PM with some other thoughts.)

Cheers,
Mani.
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« Reply #151 on: May 28, 2016, 11:23:05 am »

ok for me too
maybe I will switch to a number 3, but I guess that a decision on that is not necessary today already Happy
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« Reply #152 on: May 28, 2016, 11:27:53 am »

Thank you Leo. Indeed that decision is not necessary right now.

Regards,
Peter
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #153 on: May 28, 2016, 12:07:09 pm »

Volume control with B’ASS

Hi Peter,

remembering my „pre amp“ times, the SQ was superior with a
XXH volume setting of -6db.
 
Question:
A) your prefered XXH volume setting is where with the B’ASS? (without VC)
B) did you perform comparisions with a B’ASS “volume control”,  setting XXH “VC” to appr. -6dB and your present XXH setting.

Joachim
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« Reply #154 on: May 28, 2016, 12:10:34 pm »

Hey Joachim,

I never used a volume control with the NOS1(a) in my life.
Of course I am going to for this project, soon, but I am not going to attempt serious listening through any volume control anyway. I will measure though (and we will see later that this tells enough).

Regards,
Peter
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #155 on: May 28, 2016, 12:49:52 pm »

Hey Joachim,

I never used a volume control with the NOS1(a) in my life.
Of course I am going to for this project, soon, but I am not going to attempt serious listening through any volume control anyway. I will measure though (and we will see later that this tells enough).

Regards,
Peter

Hi Peter,

my experience in other words:

A) playing muisc without a preamp (since 2 years) the XXH VC setting is between -27dB and -36dB depended on the present prefered SPL .

B) Using a pre amp the XXH VC setting was -6dB then, and with that setting the SQ was superior to A) - I remember that Coen wrote about this impression too.

It seems there are SQ differences within XXH with different volume settings.

Joachim

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« Reply #156 on: May 28, 2016, 12:58:02 pm »

Hi Joachim,

That is correct. And that one can try to experiment with this, has been brought up by myself. This is because the D/A chips have a sweet spot. Of course it requires a volume control to be able to test this.

Peter
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #157 on: May 28, 2016, 05:15:39 pm »

I'm still in for the BNC in and out model.

Todd
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« Reply #158 on: May 29, 2016, 12:34:18 am »

I'm still in Peter.
Keep going it all looks really good.
Nick.
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28 core CPU Audio PC / w10 10393 RAM OS => XX V2.07 / adaptive mode / XX buffer 4096 / NOS USB driver v 1.02 buffer 8ms / Q1,2,3,4,5 = 7,0,1,0,1 / xQ1 =1 / unattended / SFS 0.27Mb / memory straight continuous / system clock 1.0ms / Threadprio RealTime / Playerprio Low / CPU scheme 3-5 / 16x Arc Prediction / Peak Extend off / Phase alignment off / Phase off  / XTweaks : Balanced Load 43 / Nervous Rate 1 / Cool when Idle n/a / Provide Stable Power 1 / Utilize Cores always 1 / Time Performance Index = Optimal / Time Stability  On => modified NOS1 USB DAC => no pre-amp => Orelo active horn loudspeakers

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« Reply #159 on: May 30, 2016, 10:06:31 am »

Hi Peter,

Can I join now for a number 2.(RCA and XLR) The price is OK for me. Thanks.

Leung
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« Reply #160 on: May 30, 2016, 10:17:54 am »

Hi Leung - Yes please !

Thank you and regards,
Peter
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W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #161 on: May 30, 2016, 10:44:30 am »

All of you, thank you very much so far !

We are at 16 now (the original subscribers counted 24 IIRC) so I hope we can find 4 more in order to comply to the price of the case. So please, respond if you wish to have one and do not think "oh well, I will get one anyway, later". So it is really about the batch size and while the price of mentioned "205 euros more" is about a production threshold of 20, in realilty it is about a batch size of 25. Thus, I will let make 5 more anyway which is my own investment (no worries, I am fine with that). Now :

What I will do is apply a sort of sliding average, thinking that I will let produce always 5 in a batch. This will be ~150 per piece more then. However, say that I let produce 5 more for the first batch (now the promised 205 euros more applies) then on average this is actually 150 / 2 = 75 more when we also take into account these 5 I let produce more anyway. This means that when the first batch is sold out, a next costs 75 more (anticipating 5 more subscribers after the first batch sold out).
If I can sustain the batches of 10 to produce with an actual order quantity of 5, it shouldn't be too bad if all new ones after the first batch sold out, are 75 more.

Long story short (and sorry about the brainstorming character of this post) : There will be a first batch of 25 (or more) and it can be produced against the promised price(s) as mentioned in my earlier post (this means that the 205 euros more than the original wooden box, can hold). This batch will be produced when 20 subscribers are there (16 at this moment). At some stage we'll pull the trigger and after that every new subscriber pays 75 more (and new batches will be produced when 5 orders exist for this new batch, while a produced batch will always consist of 10).

Thank you all !
Peter
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #162 on: May 30, 2016, 08:34:10 pm »

Hi Peter
  I'm also in for a modified #3 with VC and extra RCA/BNC inputs if still possible.
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« Reply #163 on: May 31, 2016, 03:10:50 am »

I'm still in Peter but I've decided on #2 instead of #1. Thanks again.

Esau
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« Reply #164 on: May 31, 2016, 11:14:42 am »

Thank you guys. We're at 19 now, so I suppose the 20th will be there soon. Happy

But prior to that we are trying to make something of that finish;

I can tell you, the pure aluminium (aluminum for some) looks really cool. It also looks like such a thing is not being done. It looks too good to be true.
Well, possibly that is right.

So far, after many many hours of research and also trying some things for real, it looks like it is impossible to apply some clear varnish etc., because the first thing to deal with is the "veil" of fat that actually springs from the aluminium itself; when you deal with this, you can feel that you squeeze out the inside fat and next wipe it over the surface.

This material is realy strange, because when you wipe it with water and make it all dry, all the gloss vanishes, although the surface remaining from that is quite "equal".  You could like it, not knowing what's under the surface (for super gloss).
Don't like it ? then it takes 15 minutes to get rid of that glare.

Point is : At this moment I am unable to create a "stain-less" surface, so the possible varnish over that will only seal the stains. So now I am going to an anodising company and ask what possibilities are.
And no, that was not contained in the price (grr).

Peter



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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #165 on: June 01, 2016, 08:10:28 am »

Hi Peter,

What's the dimensions of the B'ASS unit? I couldn't find it in the threads.

Best regards,

Arvind
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« Reply #166 on: June 01, 2016, 08:51:42 am »

Hi Arvind,

234 x 234 x 74 mm.

Regards,
Peter
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #167 on: June 01, 2016, 10:43:32 am »

Hi Peter,

you saw my email on Montag, 30. Mai 2016 12:06

Joachim
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« Reply #168 on: June 01, 2016, 10:47:29 am »

Yes Joachim, I did. Thank you.
(and I didn't see a question in there)

Peter
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #169 on: June 01, 2016, 02:34:47 pm »

Hi Peter,

I'm in for the BNC one.

Regards,
Quint
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« Reply #170 on: June 03, 2016, 01:22:18 am »

Hi Peter. I know that B'ASS can be used with any DAC. I was just wondering then if you've tried out B'ASS with other non-Phasure DACs and, if so, how did it(they) sound with the upgrade. Just curious.

Esau
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2010 mac mini running Windows 7 Professional N 64bit *SP1* and XXHE on SSD in Boot camp mode, mac os x Snow Leopard with Audirvana Plus also on SSD, music on  separate 2 Tb firewire La Cie HD / 8 Gb RAM/ Engine#4 *Adaptive Mode* / Q1/2/3/4/5 = *30*/0/0/0/0 (Dev.Buffer = *4096*) / ClockRes = *15ms* / Straight Contiguous / SFS = 170 / not Invert / Playerprio = Low / ThreadPrio = Real Time / Scheme = 3/ *Minimize OS = On*  / 24/768 Phasure/Is Phasure NOS1/ NOS1 async USB DAC, Driver v1.0.2 -> Marantz PM KI Pearl amplifier ->Gallo Strada/Gallo TR3 subwoofer
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« Reply #171 on: June 04, 2016, 01:37:21 pm »

Hi All,

I added a table with prices to the first post.

Drumming !
Peter
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W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #172 on: June 05, 2016, 12:55:48 am »

Hi Peter,

How does one figure out how many "amplifiers" we need?  Is it a case getting a few and then seeing if that is enough.  Will we be able to add more "amplifiers" in later on if we see the need?

Regards,

Anthony
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XXHighEnd 2.05 RAM-OS (W10586 RAM)
Engine#4 Adaptive Mode / Buffer 4096 / Q1/3/4/5 = 14/1/1/1 / xQ1 = 1 / Processor Core Appointment Scheme = Core 1-3 / PlayerPrio = Low / ThreadPrio = RealTime / ClockRes = 1ms / Not Switch during playback = off / Xtweaks Balanced Load = 64 / Nervous Rate = 1 / Cool when idle = 1 / Provide stable power = 1 / Utilize cores always = 1 / Time Stability = Not Stable / Time Performance Index = Not the best / SFS 0.12MB Max 20MB / Straight Contiguous / Include Garbage Collect = on / Start Playback during conversion = off / Do not start playback at all = off / Copy to XX-drive by standard = on / Always clear Proxy before Playback = on / Stop Remaining Desktop Services = on / Stop Remaining Services = on / Stop WASAPI Services = on / Stop W10 Services = off / Keep LAN Services = on / Persist = on / Use Remote Desktop = on/ Custom Upsampling / Minimize OS = on / Peak Extend = off / Unattended

Audio Chain
Silverstone USB3 (isolated) >> Clairixa USB (short) >> Intona >> Clairixa USB >> 24/768 Phasure NOS1a async USB DAC, Driver v1.0.4 (4ms) -> 6 way active horn speakers (Single Ended Triodes)
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« Reply #173 on: June 05, 2016, 11:33:46 am »

Hey Anthony,

This is such a good question that I don't have the answer.

Maybe the whole feature of allowing you guys to choose is causing troubles now. Maybe my hunt for always keeping the price as low as possible, is killing.

wacko bzz

Example of my own situation :

I have 4 levels of amp at my service and the past days I used 3. This is because 4 can be too much, or maybe for certain music it is too much. Anyway, 3 is enough for me, and 4 I try some times. Notice that usually when I try 4, I know in advance that it will work (say that I can hear that, derived from 3). Then, a next day things may not sound the best (which already always is the case the first 20 minutes - despite all being On 24/7) and I switch back to 3.

Yesterday I tried something new and sound was superb;
It didn't take long to switch on #4.
Possibly it has been my best evening ever ...

When it still is so that tonight (or other days) I switch off #4 again, I don't need a #5; 4 is actually on the edge already and things need to be really good to have it on. However :
When I'd enter a stage that #4 never is switched off any more, I WILL make me a 5th. How else can I know whether that will be better again ?

And also to keep in mind : a month ago I did not have my LPS and what I did back then with hopping between 3 and 2, turned into hopping between 4 and 3. Just because something improved. And you know, by now I start to wonder how an open baffle speaker (it still is that yes) is even capable of producing such powerful bass, which now plainly feels like there's a few cubic meter of cabinet around it that pumps up itself with air before a vent opens and the power escapes in a blast. It really starts to be outrageous.

Btw it is interesting in itself to observe what actually happens, because adding "normal power" to the bass, brings something very different. So as we know I can easily DSP-in way more bass "level", but that does not work at all because it changes the balance. All will be too heavy and in the end coloured. This just adds power as such. Literal power.
And if people would complain about their DACs (the NOS1(a) ahead) that there's no power coming from it, then OK. But this is not so and thus this is a dimension we are not aware of.
Hey, this reminds me of the passive I/V conversion I played with for about a year (with the first NOS1 and prior to real production). It suited me well, but a sort of forced by the commercial situation and not so efficient speakers (mine already were 115dB at the sime) I *had* to swap to active I/V conversion. Then too I was shocked because it was actually better and I did not expect that at all. Now, thinking back of that situation, this was with 4.8mA of initial current and no molesting active device. But how does that poor weak signal end up at the amplifier ? say totally collapsed and tired because of the long travel. It isn't disturbed but it disturbs itself by breathing too heavy (so to speak). So better add an active device and 80mA of current, so the signal may be disturbed a little, but no wobbling breath taking is in order and at least all arrives in good shape.
We now do this again in superfold and as said with a factor of ~6 per amp level. Now we have an athlete and his heartbeating is not even disturbing his balance after arriving. One problem he has : he is so good and fast that he's having problems in the curves of the track and tends to break out of them. He really needs banked curves in order to be so fast and firm. And the faster he goes (more amp) the more banking he needs (better system as a whole). So without the banking he needs to hold back a bit (less amp).

So how much do we need ?
For fun, here is the table again :

2 amp      3 amp      4 amp      5 amp      6 amp      7 amp      8 amp     
1. RCA-In / RCA-Out    131516156518
2. RCA-In + XLR-In / RCA-Out + XLR-Out      160524
3. BNC-In / BNC-Out (incl. Blaxius set)   144536169538
4. BNC-In / BNC-Out x 2 (bal., incl. 2x Blaxius set)   173544
5. RCA-In / RCA-Out x 2 (balanced)   160554

Now cut out all the BS with headphone outputs, volume controls and Input selections, and there you have it. Just think that your best ever DAC NOS1a got ~1700 more expensive again, but that you will drop dead from being astouned. And worse, because you can set the sound.
Worse again, because what you can not achieve today (be stuck at 4 levels) can still work in 2017 when some idiot finds another gag that improves at the general level, which now allows your B'ASS to switch on that other level, always there waiting for you.

Peter
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W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
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« Reply #174 on: June 05, 2016, 02:06:34 pm »


Hey, this reminds me of the passive I/V conversion I played with for about a year (with the first NOS1 and prior to real production). It suited me well, but a sort of forced by the commercial situation and not so efficient speakers (mine already were 115dB at the sime) I *had* to swap to active I/V conversion. Then too I was shocked because it was actually better and I did not expect that at all.

Peter, there was a time when I would have been concerned about an active I/V but those days are long gone.  In my eyes active at the source is just "necessary" for the reasons that you say about current (and more).

My concern (well a little question mark in the back of my mind) with all this current amplification in the B'Ass is whether its effects are unique to your situation (your gainclones) and whether we are going to get this "improvement" with other power amplifiers.  Will it work with amplifiers of other topologies such as triodes or Class D or...?  That is a little unknown, at least from where I sit, however I generally believe that current is very important when driving an amplifier.  So I guess my question is whether you have tried the B'Ass anywhere else other than with your gainclones?  And sorry to put you on the spot like this...honest question...please know that I am standing first in line for one of these things.

Cheers,

Anthony
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XXHighEnd 2.05 RAM-OS (W10586 RAM)
Engine#4 Adaptive Mode / Buffer 4096 / Q1/3/4/5 = 14/1/1/1 / xQ1 = 1 / Processor Core Appointment Scheme = Core 1-3 / PlayerPrio = Low / ThreadPrio = RealTime / ClockRes = 1ms / Not Switch during playback = off / Xtweaks Balanced Load = 64 / Nervous Rate = 1 / Cool when idle = 1 / Provide stable power = 1 / Utilize cores always = 1 / Time Stability = Not Stable / Time Performance Index = Not the best / SFS 0.12MB Max 20MB / Straight Contiguous / Include Garbage Collect = on / Start Playback during conversion = off / Do not start playback at all = off / Copy to XX-drive by standard = on / Always clear Proxy before Playback = on / Stop Remaining Desktop Services = on / Stop Remaining Services = on / Stop WASAPI Services = on / Stop W10 Services = off / Keep LAN Services = on / Persist = on / Use Remote Desktop = on/ Custom Upsampling / Minimize OS = on / Peak Extend = off / Unattended

Audio Chain
Silverstone USB3 (isolated) >> Clairixa USB (short) >> Intona >> Clairixa USB >> 24/768 Phasure NOS1a async USB DAC, Driver v1.0.4 (4ms) -> 6 way active horn speakers (Single Ended Triodes)
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« Reply #175 on: June 05, 2016, 03:48:46 pm »

Hi again Anthony,

I must apologize because I recall the same question already asked, while I never answered it (not sure whether it was you). So here goes :

If you look back in the first post, you can see that I there adjusted the first sentence; I did that a couple of hours ago. So what I did yesterday was changing the title, and for comfort call it a current amplifier (everybody seems to understand that). But it is not that all all, or not really or say half. This is how "buffer" suits better, but now not everybody understands.

Please keep in mind that half of this is reasoning; if it was really 100% knowing, I would have done it like this 6 years ago. That is, if I would have been as creative as I am today. Happy

Somewhere in this topic (probably in the first few posts if not the very first) I talked about the utilisation of the current when it is needed. This is typical buffer behaviour. So it is not that we put 1A to your power amplifier - it draws 1A when it needs that. Think back of the NOS2 power amp testing again (at least this is how I got the idea) and think "loudspeaker". The lower the resistance ("impedance") the more current will flow, right ? And now the fun : the more some frequency requires current, the more current will flow *IF* it is available.
Remember, impedance behaviour is not consistent - it depends on frequency; say that one frequency implies less resistance than another, then current must be readily (almost literally) pushing - ready to be absorbed.

So it is nothing like "let's put our power amps under current" (this would be a lot of Dutch in that sentence) but we make it available.
And apparently there's much more required than we could imagine, or otherwise it wouldn't improve.

Point of course is again (and excuse me if I am repeating myself from posts elesewhere) that math never tells us in this situation that such things can ever be helpful. So again I give the example of the 6GHz interlink (which so much is in the very same physical realm) which also can't help once the interlink is 10MB capable (hey, we only need 20K !). But I think it is merely a matter of disturbances occurring otherwise, them tearing down the remainder of the building. Thus, if one frequency requires more current (and this can easily be an inaudible frequency in the GHz range !) which is not really available, it is taken from the other frequencies, so to speak, and all collapses.
Ever back I also talked about the idea of a song with hardly highs in it, being better in the basses; there's now more current available for that "one frequency".

That this is now about a power amplifier and not a loudspeaker, does not make much difference to the (actually simple) idea. It is only that some gurus in the past determined the math for frequency loss etc. in cables with resistance and inductance plus capacity etc. ... and that apparently there's more behind the horizon.
Anyway, an amplifier too won't have a linear impedance and it is only that everybody will tell you that 47K or 45K really seriously never ever can make a difference. Yes, but this is au-di-o.

Anyway, it is about the availability of the current.

What I lack at this moment is a good reasoning of how it can be too much. And this is not like in "as is" but like in "relates to the environment". So at this moment this is guessing with blah like "the baddies are amplified as well". Yeah, nice. And probably even true. But first we should not talk about "amplification" as such, but we should speak merely in terms of "allowing good shape" (good control is another nice one, telling nothing more than the fact).
And oh, we don't need to think long about numerous changes and applications which make our systems sound better. But what I like to see through is how - the other way around - the system not being better yet, this "allowing of good shape" works out for the worse (must detach one amp evel). Would it then really be so that the lesser sounding system now is putting forward everything, including the bits which are "less" ? seems logical if we see that nasty highs similarly do not allow the louder levels. Not so loud is fine, but don't make the music as a whole too loud or it starts to hurt.

The nice thing is that the number of levels allowed for the day, is really a measure in itself. So yesterday I had a Day Four !! - and my system must have behaved superbly.
haha

Peter
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #176 on: June 05, 2016, 04:05:39 pm »

Peter,

I was told by someone that judging by the frequency response plot of my main speakers (from my sig) and the consequent change in impedance (depending on the frequency), my power amp (also in my sig) would switch very quickly from 200 (under 8 ohms) to 400 watts per channel (under 4 ohms) - back and forth, mutilating the sound.

Would such a situation be put more in evidence with a B'ass ?

Alain

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« Reply #177 on: June 05, 2016, 04:37:49 pm »

Hi Alain,

Quote
mutilating the sound.

I am not sure whether you want to say that the sound is destroyed. I think you want to say the opposite, right ?
Possibly you wanted to say mutate ? (as in mutation)

Anyway, what I tried to make clear was the same (I think you want to say) : the readily available current is "pushing" to be sucked in when required and FAST (otherwise it is useless).

Peter
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*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #178 on: June 05, 2016, 04:49:19 pm »

Peter,

Well... "Mutilating" the sound (200 > 400 watts > 200, etc...) while impedance is "swinging" back and forth would "affect" the sound, but not in a good way. That was said from the frequency response and the change in impedance.

In other words, if my speakers would show a better response, without swinging between 4 and 8 ohms, the sound would be better.

Sorry if my very limited knowledge is showing...

Alain
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« Reply #179 on: June 05, 2016, 04:56:17 pm »

Nothing wrong with your knowledge. Happy

Quote
Would such a situation be put more in evidence with a B'ass ?

Is it possible to rephrase that ? (that English is too difficult for me and BIAS expectation lures (see previous post)).

Thanks,
Peter
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For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = 43 / Nervous Rate = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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« Reply #180 on: June 05, 2016, 05:05:58 pm »

Here is the plot of the Tannoy System 15 DMT II...


* TannoySystem15DMT.jpg (157.46 KB, 867x416 - viewed 351 times.)
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Desktop with ASUS Sabertooth X79 motherboard,Intel 3930k 6 cores (+ 6) at 1.2 GHZ,16GB ram 1333Mhz,Win 8 pro 64 bit with no updates,OS + XXHE on external Sata III SSD (Esata), music (WAV) on external 5200 rpm drive through network, OS MInimized, XX with engine 4 adaptive,4096 (buffer size), CPU with scheme 3,Player = Low,Thread = RealTime, Q1 = 14,Q345 = 1,1,1,Q1x=1,Clock res = 1ms,Stop Desktop Services,Stop Remaining Services,Stop Wasapi,,LAN on,persist = no,all OSD off,SFS =0.4,PE off,PA off, Arc Prediction,x16 Upsample, Straight Contiguous,Clearlink USB 2 cable,Phasure NOS1 DAC,Meitner PA-6 preamp, Spectral Audio DMA-180  Power Amp, Tannoy System 15 DMT II, Tannoy St-100 supertweeters, Tannoy TS2.12 subwoofers (2).
PeterSt
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