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Author Topic: Hunting for noise  (Read 115972 times)
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Leo
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« Reply #105 on: December 19, 2013, 08:25:15 pm »

Just in time before Peter probably will replace the Dexa clocks with a new Q parameter Happy , I would like to tell about my experience with implementing these superdanes. With the online help of Nick (thanks!!!) I got them in quickly and what to say. The sound is just so pure and wonderfull and it is almost impossible to leave the room for the rest of my tasks and duties and pleasures (you just never know when she is reading this stuff...).
I also played around with the settings that Nick suggested which seem to work in the same direction (but I have been up placebo-creek before...).
And whether this is related or not I can now play with the SFS of 0,8 which gave massive hickups in the sounds and large amounds of errors in the XX control panel. This SFS change I tried after the first two days of Dexa glory. And this also moved the SQ further in this same natural, real, exciting direction.
Maybe the lower speed of RAM (800) I had before in my previous settings is a factor in this SFS thing  as well.
Allthough expensive and with the risk that Peter will get the same step, no jump, in quality  with a future release of XXHighend in the near future I am enjoying the great sound I am having today enormously.
Onwards and upwards, what a great journey!

Leo
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Dedicated silent audio pc HFX classic, Windows 8 pro 64bit  / Intel 3930 CPU 6 cores 12 threads,  ASRock x79 Extreme4-M/ SeaSonic Platinum 400w ATX PSU / 16Gb RAM , music on (SATAIII), MinOS/ Engine#4 Special Mode / Q1/2/3/4/5 = *6*/0/1/1/1 Qf=1 (Dev.Buffer = 4096) / not Invert / Playerprio = Low / ThreadPrio = Real Time / *Scheme = 1-2* @ UnAttended  /Services Off + No Running Time / Octo Arc Prediction Upsampling / *SFS=0,4 max= 120*  XT Tweaks balanced load 43, nervous=100, cool when idle 1, Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = On / Double Octo Arc Prediction Upsampling / -> USB with Dexa clock -> 24/768 Phasure NOS1 async USB DAC, Driver v1.0.3 (2ms) ->  direct to AMP: Gainclone mid high, Hypex DPS400 low, horn system (tractrix for mid/high, BD for bass with Oris200)
Nick
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« Reply #106 on: December 19, 2013, 10:07:39 pm »

Leo hi,

Im so pleased that you have had such enjoyable results. They really are quite something. Even after a long period of time the sound still raises a  smile.

Kind 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.
Nick
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« Reply #107 on: December 06, 2014, 09:51:32 pm »

Hi,

I just wanted to close out this thread with a report of the best outcome.

The breakthrough noise that is described at the start of this thread is gone.

 Happy new year !

My system will now play at XX software volume control settings of -144 db and is silent (no distorted faint music plays anymore).

The fix for this long standing problem ? The NOS1a upgrade.

I've posted elsewhere about the musical magic of the NOS1a, in addition to this magic it's the fix for the breakthrough problem as well. I suspect this may not be by chance :-). That's one of the nice things about NOS1 ownership, Peter is just so determined to do things absolutely right. Very nice in a world where development of much equipment is influenced by bottom line return and not a pure focus on sound quality.

Many thanks Peter.

Kind 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.
PeterSt
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« Reply #108 on: December 07, 2014, 09:57:15 am »

Thank you Nick. So nice to hear ...

Peter
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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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