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Thread: Simple TDA1543 NOS dac

  1. #111
    Join Date: May 2009

    Location: Bulgaria

    Posts: 11
    I'm sam.

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    thx for reply

    have you tried dac with 4 or 8 tda1543 parellel
    If I like to try It - do I have to do anything than stack Ics on top
    also ecdesigns got another mod - floating power

  2. #112
    leo's Avatar
    leo is offline Circuit Junkie & DIY Room Forum Leader
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    Location: Notts UK

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    Quote Originally Posted by samoloko View Post
    thx for reply

    have you tried dac with 4 or 8 tda1543 parellel
    If I like to try It - do I have to do anything than stack Ics on top
    also ecdesigns got another mod - floating power

    Yes, I've tried parallel TDA1543's, I personally prefer single chip but I can understand why others do like parallel chips better

    Stacked chips give more current, basically sounds louder with more bass if using a passive I/V stage

    Its supposed to improve noise figures

    To my ears parallel dacs didn't sound as natural, I found it robbed a lot of what makes these chips likeable , some will disagree which is ok, its just my opinion
    Also I think stacking chips is best left to the newer types which tend to be much more tightly matched , theres a big variation between the older TDA types

    Also paralleling these TDA1543's generate much more heat, the chips MUST be properly heatsinked, if you don't you'll reduce lifespan, these will go noisy after longterm use at high temps

  3. #113
    Join Date: Apr 2009

    Location: hungary

    Posts: 9

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    hi everybody,
    a little bit late but i bought this 1*TDA1543 + DIR9001.
    i hope arrive soon.
    certainly i will change all the elko capacitors with some more audiograde and the film capacitors with some russian PIO or PETP.
    i'd like to build a PSU very silent like that you can see here:

    http://www.tnt-audio.com/clinica/convertus3_e.html

    ok, i know, the PSU cost will be 3 time the cost for the complete DAC but the advantage, maybe, will be guaranteed.
    at least i hope, otherwise will be as throw the money in the dustbin.
    what you think about?
    thanks.

  4. #114
    Join Date: Sep 2009

    Location: France

    Posts: 3,209
    I'm notAlone.

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    NOS dacs are evil.

    Nice work Leo.
    Dimitri.

    In a time of deceit telling the truth is a revolutionary act.
    George Orwell

  5. #115
    leo's Avatar
    leo is offline Circuit Junkie & DIY Room Forum Leader
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    1543's are cheap and easy to use, they are a good starter into diy, start basic and work your way up
    Cheers,
    Leo

  6. #116
    leo's Avatar
    leo is offline Circuit Junkie & DIY Room Forum Leader
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    BTW I'm currently playing about with another NOS dac, its a diy Paradise Monica3, I'll post some details when its ready
    Cheers,
    Leo

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