CDP Double DACing?

Discussion in 'Digital Sources' started by ferninando, Jun 13, 2017.

  1. ferninando

    ferninando AK Subscriber Subscriber

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    Does an outboard hi-end DAC improve sound quality
    of a CDP which already has a good internal DAC?
    Im abit confused.
    Thanks.

    PS: I have done it on a 1bit DAC unit, adding a DACMagic to it and was amazd at the sound improvement.
    But that was not with a HI-end internal DAC.
     
  2. botrytis

    botrytis Trying not to be a Small Speaker Hoarder Subscriber

    Your CD player would be used for as the player - digital output to the outboard DAC - digital to analog conversion - connection to your audio system.

    So no, there is no double DAC usage.
     
  3. Bob

    Bob AK Subscriber Subscriber

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    the chip in the CDP could very well be in the external DAC. the former is constrained to the
    target price of the total package so it's an issue of what the designers chose (price, cost,
    value, sound quality, qty negotiations for that chip across all the current and upcoming designs).

    the external DAC has different goals and different margins.

    the good news is that with each new generation of DACs, and new design technology for circuits,
    you can upgrade that older CDP with the addition of a new DAC. I would look at the DAC chips
    used rather than the price point (if for no other reasons than to avoid the "how can a $200 DAC
    be any good" argument), and avoid the "aluminum CNC cases" that cost 5K alone.

    my favorite example is the AKM4490 chip. used in portable players and high-end CDPs. next
    up is the ESS9038 chip. look for it. buy it and listen. and save up for the next TOTL SOA chip.
     
  4. ferninando

    ferninando AK Subscriber Subscriber

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    What if there is no digital out. Can you DAC the ''audio'' out signal.?
     
  5. ferninando

    ferninando AK Subscriber Subscriber

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    Im abit ignorant . What is SOA?
    Thanks for the explanation of the other stuff.
    Except for "looking for used dac chips". not quite clear on that.
     
  6. ferninando

    ferninando AK Subscriber Subscriber

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    One other question.
    Do all DAC chips follow the same pinouts allowing interchangeability?
    Im just getting into this whole DAC rolling thing.
    I have 2 OPAMP rolls under my belt waiting for the chips to come and see how it works.
    This is al extreemly interesting.
     
  7. botrytis

    botrytis Trying not to be a Small Speaker Hoarder Subscriber

    You cannot DAC the analog audio output, You would have to ADC then DAC the analog output.
     
  8. ferninando

    ferninando AK Subscriber Subscriber

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    yes I realized that .
    a dum question.
     
  9. botrytis

    botrytis Trying not to be a Small Speaker Hoarder Subscriber

    ;) No worries :)
     
  10. ferninando

    ferninando AK Subscriber Subscriber

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    I would like to know about interchangibility of DACs tho.
    Has a standard pinout been established?

    nevermind got the answer. it is no.
     
    Last edited: Jun 13, 2017

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