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Author Topic: B'ASS Current Amplifier  (Read 83120 times)
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PeterSt
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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.

Regards,
Peter
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For a general PC :
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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 #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

Peter
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doublelife
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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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*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 #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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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 #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.
Regards, Michael
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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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XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2640v4 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 = *30*/-/*1*/*1*/*1*/ Q1Factor = *40* / Dev.Buffer = 4096 / ClockRes = *15ms* / Memory = Straight Contiguous / Include Garbage Collect / SFS = *0.90*  (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) / Stop Desktop, Remaining, WASAPI and W10 services / Use Remote Desktop / Keep LAN - Not Persist / WallPaper On / *OSD Off* / 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 Filtering Highest for 705600* / Always Clear Proxy before Playbck = On -> USB3 from MoBo -> Lush USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (*8ms*) -> B'ASS Current Amplifier -> 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 #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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« 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 - November 13, 2017 (2.09)
XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2640v4 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 = *30*/-/*1*/*1*/*1*/ Q1Factor = *40* / Dev.Buffer = 4096 / ClockRes = *15ms* / Memory = Straight Contiguous / Include Garbage Collect / SFS = *0.90*  (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) / Stop Desktop, Remaining, WASAPI and W10 services / Use Remote Desktop / Keep LAN - Not Persist / WallPaper On / *OSD Off* / 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 Filtering Highest for 705600* / Always Clear Proxy before Playbck = On -> USB3 from MoBo -> Lush USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (*8ms*) -> B'ASS Current Amplifier -> 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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manisandher
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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: 2.09 / Minimize OS / Engine#4 Adaptive / DB=4096 / *testing*: Q1=30 / xQ1=40 / Q3,4,5=1 / SFS=0.90 / XTweaks = 43, 100, 0, 0, 1 / Straight Contiguous / Clock Resolution = 15ms / Scheme 3-5 (low/realtime) / 16x Custom High / Unattended
Main System: USB3 port -> *Lush* -> Phisolator -> Phasure NOS1a B75 G3 -> BD-Design BD30-SPR mono amps -> Tune Audio Anima horn speakers
Office System: *Lush* -> Phisolator -> Phasure NOS1a G3 -> BD-Design BD30 stereo amp -> Impulse H2 horn speakers
PeterSt
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« Reply #104 on: April 27, 2016, 06:18:19 pm »

Aluminium black anodised with some twists.
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For the Stealth LPS PC :
W10-14393.0 - November 13, 2017 (2.09)
XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2640v4 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 = *30*/-/*1*/*1*/*1*/ Q1Factor = *40* / Dev.Buffer = 4096 / ClockRes = *15ms* / Memory = Straight Contiguous / Include Garbage Collect / SFS = *0.90*  (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) / Stop Desktop, Remaining, WASAPI and W10 services / Use Remote Desktop / Keep LAN - Not Persist / WallPaper On / *OSD Off* / 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 Filtering Highest for 705600* / Always Clear Proxy before Playbck = On -> USB3 from MoBo -> Lush USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (*8ms*) -> B'ASS Current Amplifier -> 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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