Hello Peeps,
I currently have a TDA1543 nos dac. I was quite curious. What is the sound / tone of AD* type NOS DACs ? They have much higher S/N ratio but are they too analytical, less warm ?
Thanks a bunch.
I currently have a TDA1543 nos dac. I was quite curious. What is the sound / tone of AD* type NOS DACs ? They have much higher S/N ratio but are they too analytical, less warm ?
Thanks a bunch.
Assuming you have two genuine chips : The AD1862 is better than the TDA 1543 but more complicate (double mono) to layout.
I will say : better a proven design with the TDA1543 than a bad with AD1862.
In both case sound is about the quality of the layouts, digital front end & clock, parts, I/V stage & buffer and of course power-supply stages.
imho the AD1862 is one of the best PCM dac chip made with its sibling PCM63 and of course the TDA1541 either ! I'm even not sure at ears the PCM1704 to be superior !
I personally bought mine at Rochester to be sure it was not a bad second quality refurbishing sold to a kit shop 😉
I will say : better a proven design with the TDA1543 than a bad with AD1862.
In both case sound is about the quality of the layouts, digital front end & clock, parts, I/V stage & buffer and of course power-supply stages.
imho the AD1862 is one of the best PCM dac chip made with its sibling PCM63 and of course the TDA1541 either ! I'm even not sure at ears the PCM1704 to be superior !
I personally bought mine at Rochester to be sure it was not a bad second quality refurbishing sold to a kit shop 😉
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AD1862 is a later product (or more advanced) than AD1860/1861. AD reserved the pins for power decoupling on some internal references (further noise reduction). You won't be able to do that on AD1860/1861. IHMO, PCM1704 is the latest R2R DAC which doesn't need bipolar zero adjustment.
a friend of me is convinced that the AD1862 and the TDA1541 are better than the PCM1704 and the AD1955 (provided you have a perfect I / U converter).
and sounds closest to the Ultra Analog module D20400a.
Are here on diyaudio test reports between this DAC-IC's ?
Thank you for advices.
and sounds closest to the Ultra Analog module D20400a.
Are here on diyaudio test reports between this DAC-IC's ?
Thank you for advices.
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I compared the PCM1704 with AD1862, both NOS on the same powersupply (just less voltage for PCM1704), the same I/U ... result for me:
PCM1704 is more soft (more neutral in lows)
AD1862 has a more dynamic stage, is more "WAU" ... is an unsurpassed candidate yet for me ... nor the TDA1540 beat it
DAC8811 is the most tweakable R-2R dac yet, so maybe a good implementation with perfect Vref and a deglitch could do it 😀