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Author Topic: USB to PC chassis ground ? (noise) - The biggest change ever !  (Read 259158 times)
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AlainGr
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« Reply #60 on: January 24, 2014, 11:55:36 am »

You put the NOS1 back in the transport box, drilled holes in the carton and play it from there ? Wink
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« Reply #61 on: January 24, 2014, 11:58:24 am »

Anyone hungry? A lot of popcorn here  Happy
 

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« Reply #62 on: January 24, 2014, 12:02:16 pm »

The white protection cubes are being used?
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« Reply #63 on: January 24, 2014, 12:19:37 pm »

I've pulled the bracket from the PPA card and listened all day today and there is a general change for the worse in a similar flavour to the Silverstone, but only about 50% of the change that happens with the Silverstone.  The symptoms are quite similar but I think I hear only about half of the "buzzing without buzzing" that Peter started talking about. 

Thanks for the experiment!

Today I succeeded in getting the silverstone to work with external linear 5V. I am not really exited about the sound, grounding the card helps a little but the sound stays sharp and ill defined. A rather different effect than on the PPA card.
I prefer the sound with the regular PC supply's 5V on the silverstone. Both a grounded and ungrounded bracket have their pros and cons to the sound. Depends on the music what goes best. This is no good and I need a different approach (like reinstalling the PPA card again).

regards, Coen
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Clarixa set + Intona (or Lush 1m), Phasure NOS1a-75B G3 USB (buf 16 ms)-> Blaxius ->SE EL95 (0,8W triode) + cheap link to Abaqus 300W plateamps> Bastanis cable-> Bastanis Sagarmatha Duo ("DIY").

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« Reply #64 on: January 24, 2014, 12:45:11 pm »


Thanks for the experiment!

Today I succeeded in getting the silverstone to work with external linear 5V. I am not really exited about the sound, grounding the card helps a little but the sound stays sharp and ill defined. A rather different effect than on the PPA card.
I prefer the sound with the regular PC supply's 5V on the silverstone. Both a grounded and ungrounded bracket have their pros and cons to the sound. Depends on the music what goes best. This is no good and I need a different approach (like reinstalling the PPA card again).

regards, Coen

Yeah, I still prefer my ppa card with the subsequent modifications. 

Hopefully Peter will end his teasing and let us know what strange brew he has concocted to get the Silverstone sounding right.

Anthony
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« Reply #65 on: January 24, 2014, 12:57:25 pm »

The NOS is swinging in the air on USB cables!

regards, Coen


p.s.
I'd also opt for the protection (styrofoam?) cubes.
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Audio PC (jan 19): XXHE PC v1 with RAMdisk w.o. videocard and 1 of 2 cpu fans + BRIX/USB3 storage musicserver. ETN to Fibre converters (linear supplies), 500m SFP modules & 5m OM4 cable. Power cable PE not connected, together with nos1 and poweramp in separate "audio" powerstrip.

Clarixa set + Intona (or Lush 1m), Phasure NOS1a-75B G3 USB (buf 16 ms)-> Blaxius ->SE EL95 (0,8W triode) + cheap link to Abaqus 300W plateamps> Bastanis cable-> Bastanis Sagarmatha Duo ("DIY").

[other sources: TD124/3009SII-i/Grace F9/lounge LCR phono; Rega Planet 1997 vintage]
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« Reply #66 on: January 24, 2014, 12:57:49 pm »

...Hopefully Peter will end his teasing and let us know what strange brew he has concocted to get the Silverstone sounding right...

Peter is mentioning need of opening NOS1, doing something in there. I have not opened mine. What (USB thingie) can be isolated fm ground?
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« Reply #67 on: January 24, 2014, 01:07:13 pm »

Quote
Peter is mentioning need of opening NOS1, doing something in there. I have not opened mine. What (USB thingie) can be isolated fm ground?

This is unrelated to the riddle tweak as such;

In the right leg there's the main PSU and (being in front of the NOS1) under the top right bolt of that PSU is a black wire; unscrew the bolt, detach the wire (it is not soldered), isolate it's bare end and ticj it through the sleeves at the right side or something (so you at least know where it's *not* going).
Notice : Not the best solution at all because it now may catch "noise" but do NOT detach it from the USB interface as of now because it is too fragile there; also, this is all trialling.

Remember, it is part of the isolation at the PC side, and part of the Silverstone setup and without anything else (like using W8) this will NOT work for the better. So let this wire be as it is for now.

Unless you applied my riddle tweak of course ...
Or anyone did already ?
haha

Peter
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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).
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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 #68 on: January 24, 2014, 01:26:11 pm »

It seems easy to try, but a photo will be more reassuring ? And I guess that having the NOS1 disconnected from mains will be safer ?

Alain
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« Reply #69 on: January 24, 2014, 04:00:17 pm »

Come on now guys, I'm sure you can be more creative !

Ok, a hint. Nothing has been applied here yet. There is a clue in this picture. A small one, but it is there ...


* RiddleTweak01.png (251.41 KB, 866x198 - viewed 912 times.)
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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.
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« Reply #70 on: January 24, 2014, 04:16:16 pm »

Hmm, 9V battery was included as well, but surely can cost more than 40c
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« Reply #71 on: January 24, 2014, 04:19:44 pm »

1. connected the 9v battery and use it to lift earth potential of the usb  a couple of volts
2. finally got rid of the red light in your mains connectionbox (really Peter.....)
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« Reply #72 on: January 24, 2014, 04:27:50 pm »

The only time I've heard anything like 'white-harp' was when I bought a 'Mana Acoustics' platform for my CD player many years ago. They used the resonance characteristic of thick glass sheet to almost tune the sound to 'white-harp'.

So I think the riddle/tweak has something to do with the pink foam pads that come with the NOS1 as 'feet'. (I have a set of pink and a set of white pads. Hey, maybe the colour makes a difference???) Did you buy a particular thickness of double-sided sticky tape to attach them somewhere on the NOS1 chassis? Or maybe using them to isolate/dampen the USB connectors at each end?

Haha, back to the colour idea. Did you buy a specific colour of foam pads? Don't tell me - was blue the best colour?

Well, you did say 'ridiculous'!

Mani.
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« Reply #73 on: January 24, 2014, 04:31:42 pm »

There is a little odd white pad under the power (? usb?) wire on the right of the NOS1.

Did you lift the wiring to the NOS with the foam blocks?

regards, Coen
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Audio PC (jan 19): XXHE PC v1 with RAMdisk w.o. videocard and 1 of 2 cpu fans + BRIX/USB3 storage musicserver. ETN to Fibre converters (linear supplies), 500m SFP modules & 5m OM4 cable. Power cable PE not connected, together with nos1 and poweramp in separate "audio" powerstrip.

Clarixa set + Intona (or Lush 1m), Phasure NOS1a-75B G3 USB (buf 16 ms)-> Blaxius ->SE EL95 (0,8W triode) + cheap link to Abaqus 300W plateamps> Bastanis cable-> Bastanis Sagarmatha Duo ("DIY").

[other sources: TD124/3009SII-i/Grace F9/lounge LCR phono; Rega Planet 1997 vintage]
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« Reply #74 on: January 24, 2014, 04:45:17 pm »

I will be monitoring this all the time. Now if you do all too (and I hope some more of you) and keep on shooting, then maybe now and then I'll put in another hint.

When possible I'll try to confirm guesses in the good direction but I will do my best to not unveil all right away. When you hear nothing of me you can bet that the guesses were all over wrong. So, I'll try to be honest. Example of this :

At this moment I can say that one of you has been in the direction fairly well but it is so much off still that it isn't worth mentioning. whistle Still, if that person would know it is him, he would have a headstart which can't be caught up by the others.

Btw, the one who is the first to post the 100% correct solution wins a nice audio attention which for sure will improve SQ and which I have been keeping a secret for almost a year by now. Will be shipped to wherever you live.
This is home brew and let's not start a riddle topic about that.
Funnily enough though this thing is the most highly related to the riddle-tweak. yes
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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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