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Best and final TDA1541A output stage
Best and final TDA1541A output stage
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View Poll Results: What's the best output stage for TDA1541A based DAC
Opamp 12 16.90%
Discrete Solid State 23 32.39%
Lampizator-style 13 18.31%
Cathode Follower 1 1.41%
Thorsten-style 10 14.08%
Other 12 16.90%
Voters: 71. You may not vote on this poll

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Old 25th July 2010, 12:32 PM   #11
studiostevus is offline studiostevus  Netherlands
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Join Date: Oct 2009
Location: Brunei
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
jean-paul is offline jean-paul  Netherlands
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Join Date: Sep 2002
Location: Germany
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.



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

BTW I found this webpage from a fellow dutchman:


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.
It's only audio. Member of the non modular PCB design committee

Last edited by jean-paul; 25th July 2010 at 02:37 PM.
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Old 10th September 2010, 02:39 PM   #13
philpoole is offline philpoole  England
diyAudio Member
Join Date: Oct 2004
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
c2cthomas is offline c2cthomas  United States
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Join Date: Oct 2006
Location: Near "Music City" (Nashville Tennessee)
Papa Pass has a new article that should interest you....... The Zen I/V converter
DIY audio can be expensive but getting to see things go up in smoke - that's priceless!!!! ..... "whatever - call it brainfart of Mighty ZM"
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Old 14th March 2013, 04:42 AM   #15
HP8903B is offline HP8903B
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