XXHighEnd - The Ultra HighEnd Audio Player
May 24, 2017, 10:14:53 am *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News: Dec. 31, 2012 : XXHighEnd + Phasure NOS1 DAC receive 6moons Blue Moon Award !
** "Lonely at the very top" **
Search current board structure only !!  
   Home   Help Search Login Register  
Pages: [1]
  Print  
Author Topic: compariison to HOLO Spring  (Read 589 times)
0 Members and 0 Guests are viewing this topic.
skypickle
Audio Loudspeaker
*
Offline Offline

Posts: 1


View Profile Email
« on: December 11, 2016, 06:00:09 pm »

has anyone auditioned the https://kitsunehifi.com/product/springdacgreen/?

I am looking at dacs - currently using an iDSD pro driving a schitt headphone amp-> Senn hd 659. Sources are rebook  flac and hi res flac (50-50) stored on NAS and played through foobar2k on win10pro (purpose built pc with h97 mobo, intel 4790s cpu, 16g ram, samsung ssd)

Has anyone a sense of the order of magnitude difference between these dacs and what is perceived to be the audible difference?
Logged
PeterSt
Administrator
High Grade Audiophile
*****
Offline Offline

Posts: 14214



View Profile
« Reply #1 on: December 11, 2016, 06:35:13 pm »

Hi there,

You did not say it explicitly but I must assume you meant a comparison between the Phasure NOS1(a) and the SpringDAC. But to be honest, I don't think anyone compared because there's insufficient availability ?

Quote
and what is perceived to be the audible difference?

Can't answer that as well as most probably I am heavily biased. No, but seriously, there's a bit (pun) more going on than having precisely trimmed ladders/resistors. I mean, having a discrete D/A converter seems to be "the ultimate" (I designed one myself - Re: Phasure NOS2) but in practice it won't be able to cope with the precision of the very much smaller package (we call that a chip Wink).
Btw, this is not related to the trimming, because my design did that too. And you know what ? this is moot when within seconds all already changes not because of environmental temperature changes, but because the resistors themselves heat up (and will show a different resistance because of that) while they are not all used at the same time (and thus also not as long and thus the one heats up more than the other).
Let's remember that for a 24 bit resolviong DAC one needs 0.000002% resistor precision (and what we can buy is 0.001% at best - maybe 0.0005%)).

So am I biased ? of course. But only from experience.
Btw, the NOS1a resolves to ~23.5 bits. Measurements of that are up somewhere in here.

Of course this is all outside of how a DAC may sound. And you really would not be the first who likes a bit (or a pile) of distortion better than without or way less. But it is not my still as it (an aim for distortion) is nothing to "develop with".

Thanks and best regards,
Peter
Logged

For the Stealth LPS PC :
W10-14393.0 - December 23 2016 (2.07)
*XXHighEnd Mach II Stealth LPS PC -> Xeon E5 2040v4 with Hyperthreading On (20 cores)* @~720MHz, 32GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/0/1/0/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 120  (max 120) / 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 = 100 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> *Clairixa USB 1m80* -> *Phisolator* 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 (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.

Global Moderator
Pages: [1]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1 RC2 | SMF © 2001-2005, Lewis Media Valid XHTML 1.0! Valid CSS!
Page created in 0.273 seconds with 19 queries.