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Author Topic: NOS1 to the next level ?  (Read 50338 times)
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Nick
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« on: April 17, 2011, 04:37:57 pm »

This is bit of a teaser post I am afraid for folks using NOS1s but listening to my system as I scan the forum I have to post on the subject Happy

I have stumbled across a way to make the NOS1 significantly even more fantastic than it already is (to my ears). Bass is there in spades (rich, deep, superb pitch), tone of instruments superb (strings, brass, cymbals), just the most analogue sound I have heard from digital. The body and presence, sound stage and sense of performance are quite superb. The difference is similar in effect to moving from z3 to z4 but much more pronounced, you hear it from the first note played !

Anyway what I plan to do is send some gear over to Peter when he gets back from holidays in a couple of weeks as I think it is important that Peter looks at this before any more is said.

For now what I can say for a fact that there is a lot of "headroom" to be had (if you can image that) from what is an already undoubtedly a perfect DAC.  Happy Happy Happy

Regards,

Nick.


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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.
Gerard
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« Reply #1 on: April 17, 2011, 04:59:51 pm »

This is bit of a teaser post I am afraid for folks using NOS1s but listening to my system as I scan the forum I have to post on the subject Happy

I have stumbled across a way to make the NOS1 significantly even more fantastic than it already is (to my ears). Bass is there in spades (rich, deep, superb pitch), tone of instruments superb (strings, brass, cymbals), just the most analogue sound I have heard from digital. The body and presence, sound stage and sense of performance are quite superb. The difference is similar in effect to moving from z3 to z4 but much more pronounced, you hear it from the first note played !

Anyway what I plan to do is send some gear over to Peter when he gets back from holidays in a couple of weeks as I think it is important that Peter looks at this before any more is said.

For now what I can say for a fact that there is a lot of "headroom" to be had (if you can image that) from what is an already undoubtedly a perfect DAC.  Happy Happy Happy

Regards,

Nick.


You Teaser   evil

You start to write like Peter... Hmmmm

 Happy
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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.
PeterSt
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« Reply #2 on: April 17, 2011, 05:05:29 pm »

too much !
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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.

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Gerard
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« Reply #3 on: April 17, 2011, 05:37:33 pm »

This is bit of a teaser post I am afraid for folks using NOS1s but listening to my system as I scan the forum I have to post on the subject Happy

I have stumbled across a way to make the NOS1 significantly even more fantastic than it already is (to my ears). Bass is there in spades (rich, deep, superb pitch), tone of instruments superb (strings, brass, cymbals), just the most analogue sound I have heard from digital. The body and presence, sound stage and sense of performance are quite superb. The difference is similar in effect to moving from z3 to z4 but much more pronounced, you hear it from the first note played !

Anyway what I plan to do is send some gear over to Peter when he gets back from holidays in a couple of weeks as I think it is important that Peter looks at this before any more is said.

For now what I can say for a fact that there is a lot of "headroom" to be had (if you can image that) from what is an already undoubtedly a perfect DAC.  Happy Happy Happy

Regards,

Nick.




One give away???

1: Did you changed something inside the NOS1 or is it something external.

 Grin
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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.
Nick
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« Reply #4 on: April 17, 2011, 06:40:15 pm »

Gerard,

It is inside and quite simple in concept but I really don't want to say more because it is very important that Peter has time to look into it, test, measure, listen and take proper view on what if anything he would like to do. My comments are subjective only as I do not have the equipment to test quantitatively.

Being inside the DAC is defiantly not a recommended place to be. But I have been working with Peter on some aspects of my system setup for quite a while which is why I have been in there with his guidance - defiantly not recommended otherwise.

I have already passed some details on and I will send Peter some parts to try the concept when he gets back. It may or may not be something that Peter can use generally, it's absolutely his call.

Best Nick.
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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.
Gerard
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« Reply #5 on: April 17, 2011, 06:50:00 pm »

Gerard,

It is inside and quite simple in concept but I really don't want to say more because it is very important that Peter has time to look into it, test, measure, listen and take proper view on what if anything he would like to do. My comments are subjective only as I do not have the equipment to test quantitatively.

Being inside the DAC is defiantly not a recommended place to be. But I have been working with Peter on some aspects of my system setup for quite a while which is why I have been in there with his guidance - defiantly not recommended otherwise.

I have already passed some details on and I will send Peter some parts to try the concept when he gets back. It may or may not be something that Peter can use generally, it's absolutely his call.

Best Nick.


Hey Nick,

Sorry i do not want to be to pushy. Had a few drinks and feeling a bit funny....

But you have gave us one.. And i think a good one!!!  Wink

It is worth the waiting. Indeed most important Peter give his view on this.

Nice that you took the time and the courage to try!!

Thanx...  ok
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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.
Nick
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« Reply #6 on: April 17, 2011, 07:15:05 pm »

Gerard,

No problems. Have a drink for me too  drinks

Nick
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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.
Gerard
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« Reply #7 on: April 17, 2011, 07:46:29 pm »

Hahaha,

Peter will not have a quiet holiday with this in mind.

 rofl rofl

 Wink
« Last Edit: April 18, 2011, 05:27:51 pm by Gerard » Logged

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 #8 on: April 17, 2011, 11:28:17 pm »

hahaha ?
HAHAHA ??

doh aggressive
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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.

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praphan
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« Reply #9 on: April 18, 2011, 09:06:26 am »

Umhhhh......

Let's do some educated guess ! It should be something to do with power supply since Nick said it is simple modification. I don't think anyone would exchange the SMT chip on board. I don't think anyone would touch the word clock floating above the Juli@ card.

I guess simple modification will go into the followings area:

1. Soldering in two additional caps on the DAC power supply PCB. The PCB has room to take more caps though. I would use Mundorf MCap Supreme Silver/Gold.

2. Upgrading the wiring from DAC to XLR or RCA terminals. I would use Mundorf pure silver wire.

3. Upgrading all internal AC/DC wiring. However, this is too difficult considering the fact that these wires run from one compartment to another.

4. Upgrading the XLR or RCA terminals. I think Neutrik is good enough.

I hope my 2 cents are well spent.
Praphan
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Signal chain: 24/786 NOS1 USB; 16 ms buffer on driver 1.0.2 => Valhalla XLR IC = > McIntosh 2301 tube monoblocks => Purist Dominus spk cable => B&W 802 D
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« Reply #10 on: April 18, 2011, 07:07:28 pm »

 Parphan hi,

They are good thoughts points 1 to 4 but its not these. In my case the DAC has not been touched with a soldering iron... Peter suspected magnets applied to the case (his joke only  Happy ) , but the details are with Peter to test now. Let's see what he finds, could always be that I had a case of rose colour glasses this weekend (i don't think so though  Wink  ).

Cheers,

Nick
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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.
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« Reply #11 on: April 18, 2011, 07:18:34 pm »

Parphan hi,

They are good thoughts points 1 to 4 but its not these. In my case the DAC has not been touched with a soldering iron... Peter suspected magnets applied to the case (his joke only  Happy ) , but the details are with Peter to test now. Let's see what he finds, could always be that I had a case of rose colour glasses this weekend (i don't think so though  Wink  ).

Cheers,

Nick

Hmmmm contest??

Could it be the fuses than???  Happy
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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 #12 on: April 19, 2011, 02:09:22 am »

Parphan hi,

They are good thoughts points 1 to 4 but its not these. In my case the DAC has not been touched with a soldering iron... Peter suspected magnets applied to the case (his joke only  Happy ) , but the details are with Peter to test now. Let's see what he finds, could always be that I had a case of rose colour glasses this weekend (i don't think so though  Wink  ).

Cheers,

Nick

Hmmmm contest??

Could it be the fuses than???  Happy


I am a big fan of fuses Happy All Power House Platinum fuses in all my stereo equipment that I could change (better than the new Hifi Tuning with gold/silver stuff, at least in my system). I would have thought one easy place to upgrade Phasure would be better cable from computer to
NOS1. Internal wiring/capacitors are a favourite of all the tinkerer but does not seem to be it. May be something more to do with isolation or
better vibration control of the unit or power supply, perhaps.
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Intel i7 950 12GB DDR3 triple channel, Win7 64bit sp1 on SSD,
firewire -> Weiss INT202 -> Playback MPS-5-> ??

0.9z-4, KS-adaptive, buffer 256, Q1=1, no oversampling, SFS 100, straight contiguous,
minimum Clock Resolution, Scheme 2
praphan
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« Reply #13 on: April 19, 2011, 06:55:12 am »

May be something more to do with isolation or
better vibration control of the unit or power supply, perhaps.

I haven't tried changing the fuse yet. I thought about it but not just only the fuse but the entire fuse compartment. Fuse contact looks like a plain vanilla material to me. I used after market power cord both JPS red with Wattgate and Kimble green with Wattgate. Little more punch than stock cord. NOS 1 comes with 4 simple foam look pads used for cushioning the DAC. But I used Vibropod instead.

I think it may be some woodoo thing that Nick used to shield out more RMI/EMI.

Nick why don't you run a contest ?

Cheers !
Praphan
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PC: Asus X58 chipset M/B; Seasonic 850W PSU; i7 970 12 threads (HT=on); ATI HD 5770; Zalman Reserator water cooling, 24GB RAM, Plextor PX230A drive ; W7 Pro 64bit plain SP1 (no further update) and XXHE on Velociraptor; music on Sata 3 2 TB HDD; WD5003ABYX sits on Thermaltake USB3 dock as playback drive; Star Tech PCIe USB3 card

XX 0.9z-8-3a : KS Engine 4 "Adaptive"; DB = 4096; APx16; Q1/2/3/4/5 = 14x1/0/0/0/0; No Appointment/low/real time; CR = 0.5 ms; XTweaks Ultimate; SC; SFS= 120/120 ; allow format change; unattended ; min OS and stop "all" services; normalized volume usually played at -15db ;  peak extension on ; PA off

Signal chain: 24/786 NOS1 USB; 16 ms buffer on driver 1.0.2 => Valhalla XLR IC = > McIntosh 2301 tube monoblocks => Purist Dominus spk cable => B&W 802 D
manisandher
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« Reply #14 on: April 19, 2011, 06:20:19 pm »

I've been wondering whether upgrading the stock DVI cable connecting the NOS1 to the PC might make a difference. A copper DVI cable with better shielding than the stock cable might help. Of course, a fibre optic DVI extender would galvanically isolate the NOS1 from the PC altogether...

Mani.
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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
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