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Author Topic: BEST DAC  (Read 37441 times)
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leifchristensen
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only the simplest can accommodate the most complex


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« Reply #15 on: September 21, 2010, 03:02:11 pm »

I´ve used this in a couple of applications with great success:
http://www.national.com/ds/LM/LME49723.pdf
it´s now a part in my rod elliot based "Project 84": 8 band constant Q parametric eq unit that controls my dual bd-30 quattro bd-15 woofer towers from Bert Doppenberg and they´re lightening fast and super transparent and an absolute joy to listen to
highly recommended!
best
Leif
« Last Edit: September 22, 2010, 08:57:29 am by leifchristensen » Logged

ASUS P5K-E/Intelquad6600/8gbkingston6400ram/SUPERTALENT ULTRA SSD 64GB systemdisk+4x500wdmusicdiscs/vista ultimate64bit/XXplayer ver.0.9z-2/AP QUAD q4(15/15/0/0)/player priolow/threadpriorealtime+4x,John Kenny modified/batterypowered clocks HiFace,  Twisted Pear Buffalo II reference dac and Avantgarde Trio custom  active basstowers (4xBD-15channel)powered by dual BD-30 amps,eq´ed by Rod Elliot P-84 and passively crossed over@130hZ with custom 24db/oct. passive line lvlv filter by Phil Marchand  and diy cost no object 6c45-IT-300Bamps(Borderpatrol based)+ a SOLID phono setup
Marcin_gps
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« Reply #16 on: November 18, 2010, 09:23:57 am »

Anyone heard (about) dB audio labs Tranquility DAC? It's a USB NOS DAC, 16/44 only, but looks good.

http://www.dbaudiolabs.com/

Here's a lot about it - http://www.audiocircle.com/index.php?topic=74816.0

The DAC received great reviews and is considered to be better than e.g. Ayre QB-9. Right now I'm trying to estabblish whether it supports KS or not. To be or not to be for me and you guys Happy

Best regards,
Marcin
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PeterSt
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« Reply #17 on: November 18, 2010, 10:41:36 am »

Oh, but I don't think this is really "special" so to say. One thing though : it is NOS and filterless, and anyone listening to an e.g. DDDac (which is quite known overhere) will experience similar.

Supposed it is very well designed, it always will give you more pleasure than whatever other (no matter price) OS DAC. But ...
it will measure 15% distortion, and this is audible too. Please notice : this is nothing about "thus you like distortion" (which is what everybody will say), it is the the NOS thing, and the distortion just makes it not 100% as could be. But still preferrable over 0,00001% THD+N whatever OS, which is no real figure for OS DACs.

That's why I have been working so hard on the NOS1. So, NOS *and* 0.005% THD+N (worst case at 1KHz), but this time a real figure.

Look below what happens with a normal (but ery good) NOS filterless DAC. Test tone is at 10KHz, THD+N is in-(audio)band only. Distortion is 15% for this frequency.

So, that bad it is. But still better than any OS DAC.


* NOSF03.png (18.71 KB, 971x601 - viewed 2235 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.
Removed Switching Supplies from everywhere.

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ivo
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« Reply #18 on: November 20, 2010, 09:17:01 am »

Just need some opinion about this:

http://www.audio-gd.com/En%20audio-gd.htm

Ivo
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Music on internal HDD in FLAC-->LatestXX in QAP + PeakExt Mode[KS,Adaptive,2048,Q1=14,xQ1=1,Sch3,Low,Realtime,15 ms, SFS 2-400, Straight, stop all, MinOS]-->Windows 7 Pro SP1 x64bit-->Intel i5 based laptop [8 GB RAM]-->JKDAC32(HiFace based USB-I2S-DAC)-->Denon PMA-1500AE-->JBL E90 3-way speakers
Marcin_gps
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« Reply #19 on: November 20, 2010, 11:55:39 am »

there's a huge topic at head-fi and small at computeraudiophile. Reference 7 is their best offer and supposedly better than Prism Orpheus or Resolition Cantata (as the comments say). I also found a comparison to the above dB audio labs Tranquility which "is in another leage than audio gd Ref 5" (better). What is the reality? That you won't know until you try one in your system. Audio-gd has many inputs and balanced outs, but you need a good s/pdif interface (integrated usb input isn't any good). Ref 7 can't be slaved to external clock. dB audio labs tranquility dac is usb only, filterless nos dac. No drivers needed, KS capable. I'm gonba try it since it's below 1k for ex demo unit.
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