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  1. Old Comment
    abraxalito's Avatar

    Hexacap-based Ozone DAC

    Raw voltages are coming from my bench supplies (two dual output ones) which are linear, cheap Chinese ones. Since my experience with the chipamp I'm rather wary of regulators - adding caps to that (LM338) still improved the sound, despite the DS showing impressively low Zout at LF. Similar experience with shunt regs - I used a transistor assisted TL431 which according to sims should be in the region of 30mohm, adding caps (20,000uF) to that still improved it. The shunts were powering TDA1387 DACs.

    Tentative conclusion - Zout definitely matters but its not the metric which tells how good a reg is for audio. Peufeu's idea of seeing how much distortion is generated when feeding a signal in is on the right track I feel. But realistically a reg should be fed noise in and then see how much noise it spits out.... My hunch is this is the acid test and the real reason why feedback is avoided by those seeking the ultimate SQ...
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    Posted 20th March 2014 at 06:37 AM by abraxalito abraxalito is offline
  2. Old Comment
    fas42's Avatar

    Hexacap-based Ozone DAC

    You're not kiddin' ... !!

    With this setup are the raw voltages coming from SMPS? And, have you played with, or considered using the Jung regulator or similar, which gives ultra-low impedances at LF? As a comparison, perhaps?
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    Posted 20th March 2014 at 06:05 AM by fas42 fas42 is offline
  3. Old Comment
    abraxalito's Avatar

    Hexacap-based Ozone DAC

    Thanks Frank Its terribly serious because they're all barking up the wrong trees rather than having fun following their curiosity. Audio is terribly religious isn't it?
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    Posted 20th March 2014 at 05:36 AM by abraxalito abraxalito is offline
  4. Old Comment
    fas42's Avatar

    Hexacap-based Ozone DAC

    And here I was, thinking it was a Jackson Pollack ...

    I can always rely on you, Richard, to provide me with some light relief on this terribly, terribly serious forum, .
    permalink
    Posted 20th March 2014 at 05:33 AM by fas42 fas42 is offline
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