Pushing the limits of TDA1543 NOS DAC - Page 6 - diyAudio
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Old 4th May 2011, 04:50 PM   #51
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Default bsp129 availability (for shunt regulator)

NEWARK says they are expecting stock next week and more in June, so not too big a deal.
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Old 10th May 2011, 06:42 AM   #52
jambul is online now jambul  Belgium
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Hi Peter,

impresive as ussual. can you post the bom for the new schematic of the balance dac ?

thank you

deni
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Old 10th May 2011, 04:35 PM   #53
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Unfortunately I don't have any BOM (never needed them for prototyping), however, it's relatively easy to figure out what parts are required following schematics and pics.
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Old 18th May 2011, 11:35 AM   #54
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Peter, Having listened to a recently purchased Maganvox CDB 482 CD player with TDA1541 chip, I find myself interested i what this DAC is capable of. I have CS4398 OS DAC and find that it can sound digital at times with artifacts apparent in places. While it is not optimized, this seems likes a reasonable and simple implementation of a NOS DAC that would give me a pretty good idea of what to expect from this type of setup. I have two questions for you concerning the build. How do you match the chips? Would there be any advantage to adding I/V stage like D1? My current setup is Borberly balanced line-stage and Pass AJ's. I am also in process of gathering parts for F3 and noticed you use this amp. I have chosen it because i hope it pairs well with my MA 10.2 drivers. DO yo have any comments on the F3 sound?
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Old 28th May 2011, 12:04 AM   #55
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I match the chips in a circuit; just swap them in and out until I get desired offset level, usually below 10mV.

I can't imagine any advantage in adding active I/V stage, unless of course your line stage can't work with passive I/V.

I like the sound of F3 very much, however, I'm not using any coupling caps at the output, those are replace by speaker's crossover capacitors. That also means that F3 works only as mids/highs amps in a biamp system.
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Old 28th May 2011, 12:42 AM   #56
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Thanks for the reply
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Old 29th May 2011, 07:47 PM   #57
manollo is offline manollo  Greece
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HI Peter
I am using your Nos dac about 2 years now and I am very satisfied with the excelled sound
As all I think that it will be interesting to try your mods to go to the next level...
My Dac is fed by a Optima Red Top battery 12v/50Ah.
Do you think that I will need the Psu with the transformers or only the Regulators?
Your thoughts always count a lot!
Thank you Emmanouil
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Old 31st May 2011, 02:16 PM   #58
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You can power the regulators off the battery as well, so no transformer is needed.
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Old 1st June 2011, 06:01 PM   #59
manollo is offline manollo  Greece
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Thank you Peter
I would go with the Battery and the regulators. I will need 2 or 3 of them?
(Some photos from my Nos dac and the Singaclone feeding from the Battery)
Attached Images
File Type: jpg DAC.jpg (27.7 KB, 1703 views)
File Type: jpg TRANSPORT.jpg (28.5 KB, 1674 views)
File Type: jpg OPTIMA BATTERY.jpg (28.4 KB, 1659 views)
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Old 1st June 2011, 06:20 PM   #60
manollo is offline manollo  Greece
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One more photo from (Peter's) nos Dac
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File Type: jpg dac1.jpg (110.3 KB, 1663 views)
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