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View Poll Results: What's the best output stage for TDA1541A based DAC
Opamp 10 17.24%
Discrete Solid State 19 32.76%
Lampizator-style 10 17.24%
Cathode Follower 1 1.72%
Thorsten-style 7 12.07%
Other 11 18.97%
Voters: 58. You may not vote on this poll

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Old 25th July 2010, 12:32 PM   #11
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Seems we have a winner...: Discrete solid state.
Unfortunately this still leaves a lot of room for different concepts... I have read a lot of good stuff on Pedja Rogic' output stage, and thinking about building that one. Good choice? I have never designed a PCB before, so would this one be good for a beginner?
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Old 25th July 2010, 02:09 PM   #12
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Pedja Rogic used a AD844 in a non standard topology. Very nice but it won't qualify as "discrete" if that's what you're after. He was not too keen on other people using his design (commercially that is ) AFAIK. You can find the schematics at his website.

Rudolf Broertjes designed a nice discrete stage but I never made one working as I got lost in the different versions for TDA1543, TDA1545 and TDA1541A. That one is fully discrete and Leo from diyparadise.com uses a version on his Monica TDA1545 DAC. It is supposed to sound very good. It will take time to find the right version for TDA1541A I think.

http://www.tnt-audio.com/sorgenti/monica2_mods_e.html

http://diyparadise.com/shop/index.ph...products_id=61

edit: the link on that webpage to the schematics etc. does not work ...

BTW I found this webpage from a fellow dutchman:

http://home.wanadoo.nl/dezaire/CD80mod/IV-omzetter.htm

The remark of the author that cdplayers nearly all sound the same is somewhat suspicious though I would design a nice PCB instead of the heap of parts glued together too.
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Last edited by jean-paul; 25th July 2010 at 02:37 PM.
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Old 10th September 2010, 02:39 PM   #13
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Hello everybody!
I voted for opamps.
Although I still yearn to build a decent solid state I/V - my previous attempts have been disastrous.
Op-amps are very simple to get started with and can be very good when done with care.
My dual TDA1541A with PMD100 (8x OS) works well with opamp IV and bessel filter.
(But I'm still keen to try discrete one day - should I ever get round to it).
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Old 10th September 2010, 03:01 PM   #14
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Papa Pass has a new article that should interest you....... The Zen I/V converter
Zen I/V Converter
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Old 14th March 2013, 04:42 AM   #15
HP8903B is offline HP8903B  United States
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bump
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