Hello
I was first thinking about using op-amp or tube for a I/V stage for a TDA1541A dac, but after reading about the op-amps subject and because of some of my limitations with tubes, I decided to go for a discrete I/V stage.
Searching on the net and in the Diyaudio and Diyhifi forums I found four circuits.
But I did not found the distortions figures for those circuits, some are from members of this forum, anybody would know the distortions figures of those circuits ?
Any one can tell any comparaisons or listening experiences on any of those four circuits ?
I've place all of them in one image.
Thank you
Bye
Gaetan
I was first thinking about using op-amp or tube for a I/V stage for a TDA1541A dac, but after reading about the op-amps subject and because of some of my limitations with tubes, I decided to go for a discrete I/V stage.
Searching on the net and in the Diyaudio and Diyhifi forums I found four circuits.
But I did not found the distortions figures for those circuits, some are from members of this forum, anybody would know the distortions figures of those circuits ?
Any one can tell any comparaisons or listening experiences on any of those four circuits ?
I've place all of them in one image.
Thank you
Bye
Gaetan
Attachments
I'm using AD844 in configuration as in image C, the only difference is that I also use AD844 output diamond buffer. With the little fielding with 200R trimmer, you can have DC coupled output, but output offset will wary from -30mV to zero from startup (in my case). Sound is very, very good.
aparatusonitus said:I'm using AD844 in configuration as in image C, the only difference is that I also use AD844 output diamond buffer. With the little fielding with 200R trimmer, you can have DC coupled output, but output offset will wary from -30mV to zero from startup (in my case). Sound is very, very good.
Hello
That is the one design by Pedja Rogic.
I do not have fet but maby I can find some on old pc board, does it need to be this fet or any similar one will do ?
You use it in a OS or NOS TDA1541A dac ?
Thank you
Bye
GAetan
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