XXHighEnd - The Ultra HighEnd Audio Player
March 28, 2024, 12:44:56 pm *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News: August 6, 2017 : Phasure Webshop open ! Go to the Shop
Search current board structure only !!  
   Home   Help Search Login Register  
Pages: 1 2 3 [4] 5  All
  Print  
Author Topic: Clean Power  (Read 73006 times)
0 Members and 1 Guest are viewing this topic.
manisandher
Crazy Audiophile
****
Offline Offline

Posts: 2112

from-first-principles.com


View Profile WWW Email
« Reply #45 on: July 19, 2012, 01:41:25 pm »

Maybe not stupid when you think it is a false alarm..

Yes I was asking whether it might just be a false alarm - the 'noise sniffer' might not be designed for a balanced setup.

Is it allowed to know what this was ? I mean, maybe I am going to read that article, but reading my own posts ?

Yes, referring to 'Peter's long post' is a bit like referring to Berlusconi's gaffe. I meant this:

Hook up your DC Voltmeter to the two ground references. You should see something. Now, start switching on house devices like phone adapters or motors or possibly amplifiers and the like. Watch the DC Offset change with it.

Now envision that this DC Offset mangles with at least your house ring ground reference. So, mid point e.g. goes up, and think about the part of the (hot point) wave above zero (which should be lower now in amplitude ) and the one under it (should be higher). Here you are turning that sine into something else.

In the mean time your AC output changes too. I never looked at it on the analyser, but while net the result should be the same, it won't because of the wave shape and let's say (for easily envisioning it) clipping at one side.
This all is about your consuming devices fireing back to the mains because of they changing the ground reference.
It may not be an official thing, but this is how I once could look at it. So, that consuming device is not a "balanced device" like in "it draws from both the phases separately" (see earlier posts about this - the 115v/115v thing) but as how I look at it, it will draw the ground towards "itself". So, where ground is to be 0V (which is a virtual thing always, but works for the physics in order) and a device is consuming the 230V, the ground goes up by, say 5V. I know, for AC this can't work, but I think something like switching power supplies ay use the positive side of the wave only or more than the negative, which depends on how the AC/DC conversion is done.


Attached are are a couple of snippets from the article.

Mani.


* Non-balanced AC.JPG (116.59 KB, 711x628 - viewed 1009 times.)

* Balanced AC.JPG (155.94 KB, 714x754 - viewed 1031 times.)
Logged

Main System:
Phasure Mach III (Win 14393.0 on RAM-OS / controlled by RDC, / connected directly to music server / XXHighEnd 2.11 / Minimize OS / Engine#4 Adaptive / DB=4096 / Q1=10 / xQ1=15 / Q3,4,5=1 / SFS=4.00 / XTweaks = 34, 10, 0, 0, 0 / Straight Contiguous / Clock Resolution = 15ms / Scheme 3-5 (low/realtime) / 8x Arc Prediction / switch #5 'up/off' / Unattended) mobo USB3 port -> Lush^3 -> Phasure NOS1a B75 G3 -> 8m Blaxius^2 -> First Watt F5 mono amps -> Tune Audio Anima horn speakers
Office System:
Phasure Stealth II -> Lush^2 -> RME ADI-2 Pro FS R -> Neurochrome 286 mono amps -> Tune Audio Marvel horn speakers
PeterSt
Administrator
High Grade Audiophile
*****
Offline Offline

Posts: 16827



View Profile Email
« Reply #46 on: July 19, 2012, 01:49:29 pm »

Wow Mani. I only read the first part (will read on later) to see that I made up something which more knowledgable people already knew. But as I told earlier, for me this is just empirical finding, trying to make up the story of why around that.

Now I will read further. Thanks for posting this !
Peter
Logged

For the Stealth III LPS PC :
W10-14393.0 - July 17, 2021 (2.11)
XXHighEnd Mach III Stealth LPS PC -> Xeon Scalable 14/28 core with Hyperthreading On (set to 14/28 cores in BIOS and set to 10/20 cores via Boot Menu) @~660MHz, 48GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/0/*1*/ Q1Factor = *4* / Dev.Buffer = 4096 / ClockRes = *10ms* / Memory = Straight Contiguous / Include Garbage Collect / SFS = *10.13*  (max 10.13) / 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 = *62* / Nervous Rate = *1* / Cool when Idle = n.a / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = Stable / Custom Filtering *Low* (16x) / Always Clear Proxy before Playback = On -> USB3 from MoBo -> Lush^3
A: W-Y-R-G, B: *W-G* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> Blaxius*^2.5* A:B-G, B:B-G Interlink -> Orelo MKII Active Open Baffle Horn Speakers. ET^2 Ethernet from Mach III to Music Server PC (RDC Control).
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.

Global Moderator
stefanobilliani
Audio Enthusiast
**
Offline Offline

Posts: 207


View Profile
« Reply #47 on: July 19, 2012, 02:43:46 pm »

So in real life , If I use in the practice a transformer ( like in fig.6) from the mains to split the 220V in to two phases (115-0-115) , I can connect the PC to it for example ( included the new ground )  and all works pretty fine.
The only thing I see is a Voltage between the Transformer ZERO and the house earth . This voltage is about 70Volts , which goes to about 10V with a current flow in the order of uA .

If we want to be safe , and sure to protect our audio inputs againts that , it is better to let flow that little current -OR - connect all the HI-FI gear to the transformer .

Just my thoughts .
Logged

May 27 -2013 ,  0.9z-9

W8 pro 64bit, UEFI
sata ahci mode .
i7 (8 cores ) 2600k
RAM : 16Gig
XXHE on OS disk
Music on OS disk
Playback drive on USB3 to 4Gig Pendrive
Mobo USB 3 to Oversampling dac at 2X
KS adaptive , ArcPredict  , dev buffer 1024
Q1=8 , Q5=3 , res 1msec
Minimized OS , stop all services
X-tweaks : 45,100,1,1,1, stable , optimal
Disk Utilization : Split File Size: 120 ,max the same as SFS
Memory Organization : Straight Contiguous
manisandher
Crazy Audiophile
****
Offline Offline

Posts: 2112

from-first-principles.com


View Profile WWW Email
« Reply #48 on: July 19, 2012, 03:18:45 pm »

The only thing I see is a Voltage between the Transformer ZERO and the house earth . This voltage is about 70Volts , which goes to about 10V with a current flow in the order of uA .

In my case, the DC voltage between teh transformer zero (bonded to my dedicated earth) and the house earth is only 0.25V. The AC voltage is 0.4V. I can live with 100-200 nA.

Mani.
Logged

Main System:
Phasure Mach III (Win 14393.0 on RAM-OS / controlled by RDC, / connected directly to music server / XXHighEnd 2.11 / Minimize OS / Engine#4 Adaptive / DB=4096 / Q1=10 / xQ1=15 / Q3,4,5=1 / SFS=4.00 / XTweaks = 34, 10, 0, 0, 0 / Straight Contiguous / Clock Resolution = 15ms / Scheme 3-5 (low/realtime) / 8x Arc Prediction / switch #5 'up/off' / Unattended) mobo USB3 port -> Lush^3 -> Phasure NOS1a B75 G3 -> 8m Blaxius^2 -> First Watt F5 mono amps -> Tune Audio Anima horn speakers
Office System:
Phasure Stealth II -> Lush^2 -> RME ADI-2 Pro FS R -> Neurochrome 286 mono amps -> Tune Audio Marvel horn speakers
stefanobilliani
Audio Enthusiast
**
Offline Offline

Posts: 207


View Profile
« Reply #49 on: July 19, 2012, 03:22:43 pm »

The only thing I see is a Voltage between the Transformer ZERO and the house earth . This voltage is about 70Volts , which goes to about 10V with a current flow in the order of uA .

In my case, the DC voltage between teh transformer zero (bonded to my dedicated earth) and the house earth is only 0.25V. The AC voltage is 0.4V. I can live with 100-200 nA.

Mani.

Thanks for pointing out that . I was talking of AC voltage , but as I say it carries very little current and it can be reduced very easily .
Of course my example is a diy experiment without a dedicate earth .... ok

s
Logged

May 27 -2013 ,  0.9z-9

W8 pro 64bit, UEFI
sata ahci mode .
i7 (8 cores ) 2600k
RAM : 16Gig
XXHE on OS disk
Music on OS disk
Playback drive on USB3 to 4Gig Pendrive
Mobo USB 3 to Oversampling dac at 2X
KS adaptive , ArcPredict  , dev buffer 1024
Q1=8 , Q5=3 , res 1msec
Minimized OS , stop all services
X-tweaks : 45,100,1,1,1, stable , optimal
Disk Utilization : Split File Size: 120 ,max the same as SFS
Memory Organization : Straight Contiguous
manisandher
Crazy Audiophile
****
Offline Offline

Posts: 2112

from-first-principles.com


View Profile WWW Email
« Reply #50 on: July 20, 2012, 12:00:30 pm »

I spent a long evening yesterday comparing various AC configurations (house AC, PurePower2000, 5KVA balanced in all permutations). I'll share my views when I have more time. But I just want to quickly share something with Nick.

I went ahead and ordered a 3kva transformer from Airlink today.

The Airlink seems to work best with an AC cable with a shield. I use Belden 83803 - a pig to work with but easily available on eBay and reasonably cheap. Connect the shield to earth at both ends.

Mani.
Logged

Main System:
Phasure Mach III (Win 14393.0 on RAM-OS / controlled by RDC, / connected directly to music server / XXHighEnd 2.11 / Minimize OS / Engine#4 Adaptive / DB=4096 / Q1=10 / xQ1=15 / Q3,4,5=1 / SFS=4.00 / XTweaks = 34, 10, 0, 0, 0 / Straight Contiguous / Clock Resolution = 15ms / Scheme 3-5 (low/realtime) / 8x Arc Prediction / switch #5 'up/off' / Unattended) mobo USB3 port -> Lush^3 -> Phasure NOS1a B75 G3 -> 8m Blaxius^2 -> First Watt F5 mono amps -> Tune Audio Anima horn speakers
Office System:
Phasure Stealth II -> Lush^2 -> RME ADI-2 Pro FS R -> Neurochrome 286 mono amps -> Tune Audio Marvel horn speakers
Nick
Audio Addict
***
Offline Offline

Posts: 763


View Profile
« Reply #51 on: July 22, 2012, 12:13:34 pm »

I spent a long evening yesterday comparing various AC configurations (house AC, PurePower2000, 5KVA balanced in all permutations). I'll share my views when I have more time. But I just want to quickly share something with Nick.

I went ahead and ordered a 3kva transformer from Airlink today.

The Airlink seems to work best with an AC cable with a shield. I use Belden 83803 - a pig to work with but easily available on eBay and reasonably cheap. Connect the shield to earth at both ends.

Mani.

Mani,

i'm looking forwards to hearing the outcomes of your tests.
Thanks for mentioning of the Belden cable. I was concidering a rewire of the whole system on the Mains side and had spotted this cable. With your posertive experiance I have the confidence now to just go ahead and do it.

Also thanks for helping with my questions about the AirLink transformers, I am really happy with what it has done for my system Happy .

Cheers,

Nick.
Logged

Audio PC

C621 motherboard, Xeon 40 thread CPU.

 w10 14393 RAM OS => XX V2.10 / adaptive mode / XX buffer 4096 / NOS USB driver v 1.02 buffer 16ms / Q1,2,3,4,5 = 10,-,1,1,1 / xQ1 =15 / unattended / SFS 0.69Mb / memory straight continuous / system clock 15.0ms / Threadprio RealTime / Playerprio Low / CPU scheme 3-5 / 16x Arc Prediction / Peak Extend off / Phase alignment off / Phase off  / XTweaks : Balanced Load 35 / Nervous Rate 10 (or15) / Cool when Idle n/a / Provide Stable Power 0 / Utilize Cores always 1 / Time Performance Index = Optimal / Time Stability  On =>  Lush USB cable => modified NOS1 USB DAC => no pre amp => Orelo active horn loudspeakers with modified bass channel DSPs.

Music server: X99, Xeon 28 thread PC.

System power two 3kva balanced tranformers with dedicated earth spur.
Nick
Audio Addict
***
Offline Offline

Posts: 763


View Profile
« Reply #52 on: July 22, 2012, 01:21:42 pm »

This topic has been really helpful to stuff that I have had to look into recently and I wanted to post some impressions on the balanced mains power transformer that I have recently installed.

A recent visit by Paul's (Scroobius) to my place has helped to highlight a [big] "problem" with my system which has been holding back sound quality for a very long time. Then a return visit to Paul's place absolutely confirmed the problem and rather excitingly for me, totally reset what I consider to be my reference sound (wow Paul's system is good). During our chats Paul recommended trying balanced mains power and this became the get well step.

As a side note, it is turning out the at the "problem" is a compound one caused by a number of factors (so no "silver bullet" single fix  unhappy ). Everything in the system is coming under scrutiny.  Steps so far that have really helped are installation of balanced mains power, and the discovery that using my laptop to RIP CDs has lead to very substandard RIPed WAVs. Now that I have the Balanced mains it is easily allowing me to hear the difference between Laptop and PC RIPs easily so another part of the "problem" has been solved.

I guess that the impact from installing balanced mains power is going to vary depending on how poor the starting mains supply. I must have had poor mains quality because the change is really large here. In its fact difficult to fathom just how much better the sound has become !

Prior to installing I wanted to get the safety aspect of going balanced addressed. The AirLink Model that I went for does much of this by virtue of having primary circuit breakers and most importantly for me the RCD on the output phases installed as standard. In addition I will be fitting secondary fuses internally on all equipment that is connected to the Balanced power to ensure that what was formally the neutral wire has some fault protection within each component. I am no electrician so these measures my only be a starting point but I feel safer using balanced mains with them then without.

This is the unit which is a smaller 3kva version of the 5kva models that that Mani uses, the 3kva model has three pin main plugs installed making output wiring a little simpler than the bigger unit. Build quality is "industrial" but given the price very good, the unit makes virtually no humming sound you have to have your ear right to the case to hear anything at all and then only occasionally can you catch it making any sound. Delivery took just two days.

http://www.airlinktransformers.com/standard_balanced_power_supplies/61-BPS3110S.html

So the impact of the system on sound quality. Well sound is has improved EVERYWHERE, perhaps most importantly a nasty layer of hash and confusion in the sound has been removed throughout the performance right from lows through to highs. This has creatated a much firmer and more understandable foundation for the music to be built on with a much lower noise floor. Transients are better defined and more accurate in their weight. For the first time, in a very long time, highs could almost be described as sweet, with understandable rhythms easily coming across in percussion lines (this was also improved by the discovery that my laptop RIPS are flawed). Mid range is solid less confused has better prominence and improved air and focus between the speakers. Voices, guitars, strings, horns and drums are better reproduced with more colour weight snap and delicacy where appropriate.

My comments are in the context of the balanced power output earth being connected to the household mains PE. I have not setup a dedicated low resistance earth (using earth rods etc) but this may come later.

I was not really that much of a believer in mains conditioning before this and perhaps still don't really subscribe to the conditioning approach of many of the single phase solutions, but the Balanced approach is such a simple one, providing isolation, noise cancellation, and possibly more stable ground reference. I am hooked, this rather industrial looking box has found a place at the heart of my music system.

There are still further "problems" to address for me but I think the mains component is now done, and one strep closer the the sound I fell in love with a few weeks ago whilst at Paul's.

Nick.

Ps these impressions are with about 20 hours on the transformer they are supposed to improve quite a lot with some burn in.
Logged

Audio PC

C621 motherboard, Xeon 40 thread CPU.

 w10 14393 RAM OS => XX V2.10 / adaptive mode / XX buffer 4096 / NOS USB driver v 1.02 buffer 16ms / Q1,2,3,4,5 = 10,-,1,1,1 / xQ1 =15 / unattended / SFS 0.69Mb / memory straight continuous / system clock 15.0ms / Threadprio RealTime / Playerprio Low / CPU scheme 3-5 / 16x Arc Prediction / Peak Extend off / Phase alignment off / Phase off  / XTweaks : Balanced Load 35 / Nervous Rate 10 (or15) / Cool when Idle n/a / Provide Stable Power 0 / Utilize Cores always 1 / Time Performance Index = Optimal / Time Stability  On =>  Lush USB cable => modified NOS1 USB DAC => no pre amp => Orelo active horn loudspeakers with modified bass channel DSPs.

Music server: X99, Xeon 28 thread PC.

System power two 3kva balanced tranformers with dedicated earth spur.
stefanobilliani
Audio Enthusiast
**
Offline Offline

Posts: 207


View Profile
« Reply #53 on: July 22, 2012, 02:03:20 pm »

hi Nick, could you please poste a draw or schematic of your new balanced connection in power supply   so that we can have a reference? If possible.   stefano
Logged

May 27 -2013 ,  0.9z-9

W8 pro 64bit, UEFI
sata ahci mode .
i7 (8 cores ) 2600k
RAM : 16Gig
XXHE on OS disk
Music on OS disk
Playback drive on USB3 to 4Gig Pendrive
Mobo USB 3 to Oversampling dac at 2X
KS adaptive , ArcPredict  , dev buffer 1024
Q1=8 , Q5=3 , res 1msec
Minimized OS , stop all services
X-tweaks : 45,100,1,1,1, stable , optimal
Disk Utilization : Split File Size: 120 ,max the same as SFS
Memory Organization : Straight Contiguous
manisandher
Crazy Audiophile
****
Offline Offline

Posts: 2112

from-first-principles.com


View Profile WWW Email
« Reply #54 on: July 22, 2012, 03:01:33 pm »

I've got a few minutes before my flight, so thought I'd quickly chime in.

So the impact of the system on sound quality. Well sound is has improved EVERYWHERE, perhaps most importantly a nasty layer of hash and confusion in the sound has been removed throughout the performance right from lows through to highs. This has creatated a much firmer and more understandable foundation for the music to be built on with a much lower noise floor.

Yes, this is pretty much exactly how I would describe going to balanced AC in my system. As a result, in my system, the depth of the sound stage is really improved - certain sounds now come from way back behind the speakers. There is nothing at all in your face.

However...

The PurePower2000 provides an even more drastic improvement. It's hard to describe, but with it I'm no longer getting just a nice clean sound, I'm getting music. An acoustic guitar no longer sounds like it's made out of cardboard. It now resonates and 'sings', just like my own Martin (when someone who can actually play a guitar plays it, i.e. not me). I really, really don't want this to sound like an advert for PurePower - they are bloody expensive and may not work out well for everyone. Indeed, mine has been gathering dust in my cellar for the last 12 months because I decided I preferred the sound without it. But then I tried plugging everything into it, including the PC, and voila.

So I now how the following AC setup:
100A dedicated line -> PurePower2000 -> 5KVA balanced transformer (with dedicated earth on output) -> shielded/screened wiring

The biggest bang-for-the-buck is definitely the 5KVA transformer. But having heard what the PP2000 does, I can no longer with without it. Indeed, I've just ordered a new PurePower+3000. (Of course this is just crazy - quite frankly I could have paid my bloody mortgage off with all the money I've spent on this hobby.)

Mani.
Logged

Main System:
Phasure Mach III (Win 14393.0 on RAM-OS / controlled by RDC, / connected directly to music server / XXHighEnd 2.11 / Minimize OS / Engine#4 Adaptive / DB=4096 / Q1=10 / xQ1=15 / Q3,4,5=1 / SFS=4.00 / XTweaks = 34, 10, 0, 0, 0 / Straight Contiguous / Clock Resolution = 15ms / Scheme 3-5 (low/realtime) / 8x Arc Prediction / switch #5 'up/off' / Unattended) mobo USB3 port -> Lush^3 -> Phasure NOS1a B75 G3 -> 8m Blaxius^2 -> First Watt F5 mono amps -> Tune Audio Anima horn speakers
Office System:
Phasure Stealth II -> Lush^2 -> RME ADI-2 Pro FS R -> Neurochrome 286 mono amps -> Tune Audio Marvel horn speakers
Nick
Audio Addict
***
Offline Offline

Posts: 763


View Profile
« Reply #55 on: July 22, 2012, 04:16:57 pm »

Quote
The biggest bang-for-the-buck is definitely the 5KVA transformer. But having heard what the PP2000 does...

Dam, why do I read these things ? now I want a PurePower but I just looked at the price ! Happy

Nick.
Logged

Audio PC

C621 motherboard, Xeon 40 thread CPU.

 w10 14393 RAM OS => XX V2.10 / adaptive mode / XX buffer 4096 / NOS USB driver v 1.02 buffer 16ms / Q1,2,3,4,5 = 10,-,1,1,1 / xQ1 =15 / unattended / SFS 0.69Mb / memory straight continuous / system clock 15.0ms / Threadprio RealTime / Playerprio Low / CPU scheme 3-5 / 16x Arc Prediction / Peak Extend off / Phase alignment off / Phase off  / XTweaks : Balanced Load 35 / Nervous Rate 10 (or15) / Cool when Idle n/a / Provide Stable Power 0 / Utilize Cores always 1 / Time Performance Index = Optimal / Time Stability  On =>  Lush USB cable => modified NOS1 USB DAC => no pre amp => Orelo active horn loudspeakers with modified bass channel DSPs.

Music server: X99, Xeon 28 thread PC.

System power two 3kva balanced tranformers with dedicated earth spur.
Scroobius
Audio Addict
***
Offline Offline

Posts: 1170


View Profile
« Reply #56 on: July 22, 2012, 09:48:40 pm »

Wow I was trying to justify the cost of a balanced transformer I had not even started to think about a Purepower!!!!

P

Hey Nick - glad to hear your balanced Tx is sounding good sounds like a good enough reason to come up for another listen!! (Oh yes and another run out in the Ultima ha ha)

Also do you still have your "balanced earth" connected to house earth? as balanced operation cancels reactive currents appearing on the secondary your "balanced earth" should be nice and clean - it seems a shame to connect it to a dirty old house earth. Well maybe who knows how dirty the house earth is? - but anyway I reckon it would be worth lashing up an earth in the garden even on a temporary basis to see how it performs.

I suppose a concern is always the possibility of a significant difference in voltage appearing between the dedicated earth and the house earth - at least Mani's is very small but who knows. It would be interesting though.

Hey Mani - have you tried house earth versus dedicated earth in respect of SQ?




Logged

621 Xeon 6120 LPS PC  -> Xeon Scalable 16/32 core with Hyperthreading On (all cores active) @~660MHz, 48GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 15ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.69  (max 140.19) / 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 - Off / WallPaper Off/ OSD Off (!) / Running Time Off / Minimize OS / XTweaks : Balanced Load = 35 / Nervous Rate = 10 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = Stable / *Arc Prediction Filtering (16x)* / Always Clear Proxy before Playback = On -> USB3 from MoBo -> Lush^2*A:B-W-Y-R, B:B-W-R* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> *Blaxius^2 A:B-R, B:B-R* Interlink -> Orelino Active Open Baffle Horn Speakers.
Nick
Audio Addict
***
Offline Offline

Posts: 763


View Profile
« Reply #57 on: July 22, 2012, 10:28:18 pm »

Wow I was trying to justify the cost of a balanced transformer I had not even started to think about a Purepower!!!!

P

Hey Nick - glad to hear your balanced Tx is sounding good sounds like a good enough reason to come up for another listen!! (Oh yes and another run out in the Ultima ha ha)



Paul hi,

I was going to pm you, yes it would be great to try balanced power in your system. My unit or Mani's (or both ha ha). Could the best get better ? Let me know the dates you are thinking of.

Speak soon,

Cheers,

Nick.
Logged

Audio PC

C621 motherboard, Xeon 40 thread CPU.

 w10 14393 RAM OS => XX V2.10 / adaptive mode / XX buffer 4096 / NOS USB driver v 1.02 buffer 16ms / Q1,2,3,4,5 = 10,-,1,1,1 / xQ1 =15 / unattended / SFS 0.69Mb / memory straight continuous / system clock 15.0ms / Threadprio RealTime / Playerprio Low / CPU scheme 3-5 / 16x Arc Prediction / Peak Extend off / Phase alignment off / Phase off  / XTweaks : Balanced Load 35 / Nervous Rate 10 (or15) / Cool when Idle n/a / Provide Stable Power 0 / Utilize Cores always 1 / Time Performance Index = Optimal / Time Stability  On =>  Lush USB cable => modified NOS1 USB DAC => no pre amp => Orelo active horn loudspeakers with modified bass channel DSPs.

Music server: X99, Xeon 28 thread PC.

System power two 3kva balanced tranformers with dedicated earth spur.
Scroobius
Audio Addict
***
Offline Offline

Posts: 1170


View Profile
« Reply #58 on: July 23, 2012, 02:06:56 pm »

Interesting extract from the Equitech site and of particular interest to Nick who has a 3-phase supply to his house:

"The level of interference created when a three-phase wye system is split up and used as three single-phase circuits is truly something to behold. For example, as much as 20% (or more) of the power used by fluorescent ballasts is reflected back onto the power grid in the form of reactive or harmonic currents -- now that’s a lot of distortion. In the late 80’s, a 40-plus-story office building in Los Angeles actually burst into flames because of these reactive currents. Incredibly, the origin of the fire was determined to be from excessive harmonic distortion in fluorescent lighting circuits which created a high-frequency current overload and literally a meltdown of the electrical wiring system. The First Interstate Bank fire in Los Angeles in May of 1988 was the event dubbed by the media as "The Towering Inferno" a la the Hollywood movie. Codes were adapted to remedy the fire danger, but the noise problem itself was never completely resolved."

more here  http://www.equitech.com/articles/enigma.html

P
Logged

621 Xeon 6120 LPS PC  -> Xeon Scalable 16/32 core with Hyperthreading On (all cores active) @~660MHz, 48GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 15ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.69  (max 140.19) / 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 - Off / WallPaper Off/ OSD Off (!) / Running Time Off / Minimize OS / XTweaks : Balanced Load = 35 / Nervous Rate = 10 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = Stable / *Arc Prediction Filtering (16x)* / Always Clear Proxy before Playback = On -> USB3 from MoBo -> Lush^2*A:B-W-Y-R, B:B-W-R* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> *Blaxius^2 A:B-R, B:B-R* Interlink -> Orelino Active Open Baffle Horn Speakers.
Nick
Audio Addict
***
Offline Offline

Posts: 763


View Profile
« Reply #59 on: July 23, 2012, 11:00:04 pm »

Interesting extract from the Equitech site and of particular interest to Nick who has a 3-phase supply to his house:

"The level of interference created when a three-phase wye system is split up and used as three single-phase circuits is truly something to behold. For example, as much as 20% (or more) of the power used by fluorescent ballasts is reflected back onto the power grid in the form of reactive or harmonic currents -- now that’s a lot of distortion. In the late 80’s, a 40-plus-story office building in Los Angeles actually burst into flames because of these reactive currents. Incredibly, the origin of the fire was determined to be from excessive harmonic distortion in fluorescent lighting circuits which created a high-frequency current overload and literally a meltdown of the electrical wiring system. The First Interstate Bank fire in Los Angeles in May of 1988 was the event dubbed by the media as "The Towering Inferno" a la the Hollywood movie. Codes were adapted to remedy the fire danger, but the noise problem itself was never completely resolved."

more here  http://www.equitech.com/articles/enigma.html

P

OMG !

 I'm going to keep the fire extinguisher near by ! I'm starting to think three phase is for industrial plant not hifi ha ha.

What a great article on the equitech site, fascinating and really makes sense when you think about it. I think setting up a dedicated earth is going to be next. I found a bespoke earth in the flower bed next to the front door. The chap that owned the house was into hifi so I'm wondering if he put it in. I think I will have to get the garden spade out this week end to see what's happening. I never thought doing the garden would have the possibility of improving sound quality ha ha.

Nick.
Logged

Audio PC

C621 motherboard, Xeon 40 thread CPU.

 w10 14393 RAM OS => XX V2.10 / adaptive mode / XX buffer 4096 / NOS USB driver v 1.02 buffer 16ms / Q1,2,3,4,5 = 10,-,1,1,1 / xQ1 =15 / unattended / SFS 0.69Mb / memory straight continuous / system clock 15.0ms / Threadprio RealTime / Playerprio Low / CPU scheme 3-5 / 16x Arc Prediction / Peak Extend off / Phase alignment off / Phase off  / XTweaks : Balanced Load 35 / Nervous Rate 10 (or15) / Cool when Idle n/a / Provide Stable Power 0 / Utilize Cores always 1 / Time Performance Index = Optimal / Time Stability  On =>  Lush USB cable => modified NOS1 USB DAC => no pre amp => Orelo active horn loudspeakers with modified bass channel DSPs.

Music server: X99, Xeon 28 thread PC.

System power two 3kva balanced tranformers with dedicated earth spur.
Pages: 1 2 3 [4] 5  All
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1 RC2 | SMF © 2001-2005, Lewis Media Valid XHTML 1.0! Valid CSS!
Page created in 0.135 seconds with 20 queries.