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A novel way to massively improve the SQ of computer audio streaming

The Computer Audiophile

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Most important: please realize this thread is about bleeding edge experimentation and discovery. No one has The Answer™. If you are not into tweaking, just know that you can have a musically satisfying system without doing any of the nutty things we do here.

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14 minutes ago, Superdad said:

this NUC makes much obvious things like HQ Player SRC filters and dither options.  And now I absolutely can not stand HQP PCM>DSD conversion.  For reference, folks should know I have a heavily modified Singxer SU-1 feeding I2S to a Holo Spring Level 3.

 

I 100% agree about the filters and conversion.

I also have a modified SU-1 but am not sold on it with the NUC yet.  I just started doing some comparison with both the tX-USBultra before it and out all together.  I think I should spend more time with it.


Digital chain: Synology DS1815+ -> Linear Solution OCXO switch-> Custom 2016 Server (sCLK-EX modified motherboard, Mutec REF 10)-> AL NUC NA->  Holo Spring L3 -> Audio Research LS28-> Benchmark AHB2 -> Paradigm Persona 9H, JL Fathom sub

Power: Paul Hynes SR7, Uptone LPS-1.2, sPS-500, Topaz 91001-31 Isolation Transformer

Analog chain: VPI Prime with Ortofon Quintet Black cart -> Simaudio Neo 310LP-> Audio Research LS28-> Benchmark AHB2 -> Paradigm Persona 9H

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I measured my NUC7i5BNH it has M.2 SSD for ROCK OS and second SSD for music.

This is with regular 44.1/16 no DSP

19Vdc average 0.57A (10.83W) and peak 1.5A
15Vdc average 0.69A (10.35W) and peak 2.1A
12Vdc average 0.81A (9.72W) and peak 2.8A

Average is during play to Roon endpoint. Peak was during start up.


Main system

TAD D1000mk2, TAD M2500mk2, TAD CE-1, Ansuz Mainz 8D, Ansuz Darkz D-TC

Tidal Hifi -> Roon ROCK on NUC -> Netgear GS108 -> SOtM sMS-200ultra Neo -> USB -> SOtM tX-USBultra -> USB -> DAC

HD Plex PSU (4 rail for ISP fiber, router, switch and NUC), 2x Paul Hynes SR4 PSU (for sMS-200ultra and tX-USBultra)

Second system

Tidal Hifi -> Devialet Dialog, Devialet Silver Phantom, Devialet Tree

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34 minutes ago, Superdad said:

It sounds fantastic! :D

 

Fantastic with your ISO REGEN? Less fantastic without?

 

 

Would be greatly interested in your observations/impressions of your microRendu vs LarryNUC without ISO REGEN (whenever you get the chance to warm up the microRendu)..

 

 

 

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1 hour ago, lmitche said:

The quad core sounds a bit more resolving in the mids to me. I enjoyed listening to this machine and felt sad to see it go!

That's not what I wanted to read ?. I was very close to ordering the pentium.

 

Oh well, I am about to go and pick up my celeron NUC from the post office. My akasa case doesn't arrive until mid December though ?

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10 minutes ago, lmitche said:

I've removed the ISO Regen twice to test SQ without it. Twice it has gone back in.

 

Did some folks report Sotm tx-ultra was redundant in their setup ? I have neither iso regen nor sotm and yet it sounds fantastic and can't think of it sounding any better. How much difference do you think you gained with iso regen ?

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7 minutes ago, Dev said:

 

Did some folks report Sotm tx-ultra was redundant in their setup ? I have neither iso regen nor sotm and yet it sounds fantastic and can't think of it sounding any better. How much difference do you think you gained with iso regen ?

The ISO Regen adds clarity. Pianos and guitars are less wooly.


nuckleheadaudio.com

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Having the ISO Regen adding clarity to this new NUC endpoint doesn't give me any confidence in it's supposed superior SQ abilities considering I found the ISO Regen a detriment to SQ in my jetway single server sCLK-EX NUC system. 

 

Picked up a new 8GB memory styx.  Look forward to trying out AL loaded to memory next month.


(JRiver) Jetway barebones NUC (mod 3 sCLK-EX, Cybershaft OP 14)  (PH SR7) => mini pcie adapter to PCIe 1X => tXUSBexp PCIe card (mod sCLK-EX) (PH SR7) => (USPCB) Chord DAVE => Omega Super 8XRS/REL t5i  (All powered thru Topaz Isolation Transformer)

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2 hours ago, octaviars said:

I measured my NUC7i5BNH it has M.2 SSD for ROCK OS and second SSD for music.

This is with regular 44.1/16 no DSP

19Vdc average 0.57A (10.83W) and peak 1.5A
15Vdc average 0.69A (10.35W) and peak 2.1A
12Vdc average 0.81A (9.72W) and peak 2.8A

Average is during play to Roon endpoint. Peak was during start up.

 

Interesting how the efficiency is greater (lower wattage) at 12V than at 19V.  9_9

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7 hours ago, greenleo said:

My NUC is coming and I have an LPS-1.2 and I need a DC cable between them.

 

Anybody may advise me the dimension of the DC plugs needed for the  LPS and the NUC7CJYH?

5.5/2.5

 

You can buy adapters if you have 5.5/2.1.

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1 hour ago, MrUnderhill said:

To this:

Chain = AL NUC [R-Core 19V 5A LPSU > VBus2 > IFI Mercury 3.0 > Adapter > USB B power injector [R-Core 8V 6A LPSU >> DC 3.1 PoE >> 7V2 1A LT3045 >> 5V 0.5A LT3045] > SingXer F1

 

A bit of a simplification.

 

Result?

The new chain has a slightly bigger sound field. There is an increase in dynamics and detail.

 

All positive?

With well recorded material yes. With some tracks then a sibilant edge is more apparent.

 

 You need a larger value normal type electrolytic capacitor in parallel with the input of the 5V  LT3045 (try 100uF 16V for example) to obtain a more tonally balanced presentation. You have in effect a small increase in  upper HF detail at present. which results in a bigger soundstage, but often results in increased sibilance as you have noticed.


"If you can't hear the difference between an original CD and a copy of your CD,

you might as well give up your career as a tester. The difference between a reconstituted FLAC and full size WAV is much less than that, but it does exist. - Cookie Marenco"

 

PROFILE UPDATED 18-06-2019

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14 hours ago, auricgoldfinger said:

For my listening comparison, I simply substituted the NUC for the sMS, keeping the LPS-1.2 as the power supply for both.

 

How did you do it?

UltraCap™ LPS-1.2 (can output only 1.1A)

NUC need about 2,5a with 12v

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9 hours ago, lmitche said:

The quad core sounds a bit more resolving in the mids to me. I enjoyed listening to this machine and felt sad to see it go!

 

Fantastic, it's only $122.5 (850 RMB) from Shanghai so that's gonna be "early Black Friday" for those of us who are living in Asia

 

https://item.taobao.com/item.htm?id=581966896174

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1 hour ago, Jigafur said:

 

How did you do it?

UltraCap™ LPS-1.2 (can output only 1.1A)

NUC need about 2,5a with 12v

You are misinformed. The Pentium NUC needs 10 watts, not 30. The LPS1.2 delivers 13.2 watts.


nuckleheadaudio.com

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3 hours ago, hifi25nl said:

AL preinstalls the most important audio services and applications like Roon and HQPlayer (and in lxqt version Logitech Media Server, Squeezelite, MPD, UpnP for MPD) so it works out of the box.  These applications are already partially configured. 

I thought I'd seen options for things like LMS/Squeezelite in AL headless 0.5, not just lxqt.  Am I wrong?


NUC7PJYH/AL --> Berkeley Alpha USB --> Jeff Rowland Aeris --> Jeff Rowland 625 S2 --> Focal Utopia 3 Diablos with 2 x Focal Electra SW 1000 BE subs

 

i7-6700K/Windows 10/HDPLEX 200W/HDPLEX 400W DC-ATX --> ISO REGEN/LPS-1.2 --> iFi iDSD Micro --> Focal CMS50's 

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