+ Reply to Thread
Page 1 of 4 123 ... LastLast
Results 1 to 10 of 38

Thread: AYA dac

  1. #1
    leo's Avatar
    leo is offline Circuit Junkie & DIY Room Forum Leader
    Join Date: Jan 2008

    Location: Notts UK

    Posts: 1,805

    Default AYA dac

    I know you've seen this one but posted it here anyway
    Double crown dac chip is now in place of the standard A grade.
    Asynchronous reclocking (bypassable) and input receiver is on other side, regulation is all discrete using negative feedback and shunts.
    Output stage is NFB common base
    Shielded ransformer is custom wound supplying each stage separate

    My other main dac is based around a PCM1794, it uses discrete regulation, Tent labs oscillator with low noise psu.
    I'm currently working on a discrete differential to line output stage, will post pics sometime later







  2. #2
    Join Date: Jan 2008

    Location: Norfolk, UK

    Posts: 6,209
    I'm BigBobJoylove.

    Default

    That is excellent work Leo, sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me sell it to me.


    Ben Duncan mains conditioner
    2022 MacBook Pro 14" M1 Pro 10/16/16/16
    Samsung QE75Q90T 75" QLED TV
    XMOS DSD Async USB to Coax converter
    RME Audio ADI-2 FS (AK4493) DAC
    Chord Clearway XLR interconnects
    Audioquest Crimson USB interconnect
    QED Quartz Reference optical interconnect
    Edifier S3000 Pro active speakers
    Atacama SE24 stands

  3. #3
    Join Date: Jan 2008

    Location: Ledegem Belgium

    Posts: 86

    Default

    Leo

    Why not use the Tandberg/Revox configuration for the output amp?

    John
    Music is an emotional experience. Without it, living would be a dull habit...

  4. #4
    leo's Avatar
    leo is offline Circuit Junkie & DIY Room Forum Leader
    Join Date: Jan 2008

    Location: Notts UK

    Posts: 1,805

    Default

    Quote Originally Posted by johnrtd View Post
    Leo

    Why not use the Tandberg/Revox configuration for the output amp?

    John
    Why would it be better than whats currently being used?
    Common base works great as a I/V section with this chip, better than passive and far better than the classic I/V op-amp stage.
    I'm getting more than enough gain

    Remember I've heard a lot of units including a Hawk dac and feel more than satisfied with this

  5. #5
    leo's Avatar
    leo is offline Circuit Junkie & DIY Room Forum Leader
    Join Date: Jan 2008

    Location: Notts UK

    Posts: 1,805

    Default

    Taa for the Avatar btw ever who gave it me

  6. #6
    Join Date: Jan 2008

    Location: Norfolk, UK

    Posts: 6,209
    I'm BigBobJoylove.

    Default

    Quote Originally Posted by leo View Post
    Taa for the Avatar btw ever who gave it me
    Hehehehe, now who could have done that? Feel free to change it if you wish, just getting some colour on here!

    Ben Duncan mains conditioner
    2022 MacBook Pro 14" M1 Pro 10/16/16/16
    Samsung QE75Q90T 75" QLED TV
    XMOS DSD Async USB to Coax converter
    RME Audio ADI-2 FS (AK4493) DAC
    Chord Clearway XLR interconnects
    Audioquest Crimson USB interconnect
    QED Quartz Reference optical interconnect
    Edifier S3000 Pro active speakers
    Atacama SE24 stands

  7. #7
    leo's Avatar
    leo is offline Circuit Junkie & DIY Room Forum Leader
    Join Date: Jan 2008

    Location: Notts UK

    Posts: 1,805

    Default

    Quote Originally Posted by Filterlab View Post
    Hehehehe, now who could have done that? Feel free to change it if you wish, just getting some colour on here!

    Looks fine to me taa

  8. #8
    Join Date: Jan 2008

    Posts: 505


  9. #9
    leo's Avatar
    leo is offline Circuit Junkie & DIY Room Forum Leader
    Join Date: Jan 2008

    Location: Notts UK

    Posts: 1,805

    Default

    Yes, actually heard a few of the stacked TDA1543 dacs, wasn't really my thing tbh but they are decent enough for the price

  10. #10
    Join Date: Apr 2008

    Location: Warrington

    Posts: 3,451
    I'm Neil.

    Default

    Hi Leo, have you spent time swapping between the standard, S1 and S2 DACs? Any findings if so? I have read that the differences are subtle. I have also read that in testing, different years of DAC ( different production / locations) have sounded different!

+ Reply to Thread
Page 1 of 4 123 ... LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •