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Post 1 of Post 8 of For my DVD player, it wasn’t worth the money to rebuild the entire analog output stage.
2SD1944 datasheet
I class-a biased it with two jfets. Thanks for the tips. Some of the variations get quite complex; the one I am working on for my DAC projects currently uses something like 62 parts per single ended channel, so would be in the range of parts for differential stereo. Post 11 of Post 6 of It would be pretty simple to increase bias some so as to drop the input impedance further. What I did was to change out the opamp and replaced it with an OPA Also, the Pass D1 stage is another one to look at.
To your original question: Post 9 of Post 10 of Hope will raise sound quality. May 29, at 3: Well, there’s always the LC Audio Zapfilter http: Do you already have an account?
2SD datasheet & applicatoin notes – Datasheet Archive
Post 2 of Too expensive mod compared to the DAC performance, unless there are some great and cheap good analog stages. No, create an account now. The ones closest to the opamps look like they are the muting transistors. 2xd1944 performed a similar mod on a Sony DVD player.
2SD1944 Datasheet
Post 5 of May 28, at 6: Supposed to be really good and cheap May 30, at 6: You’ll see the signal from the opamp output will go thru a cap and a resistor or two datashee by the muting transistors.
May 29, at 5: Post 4 of You should be able to easily trace the output RCA back to the opamp.
May 11, at 9: If you can etch your own board, or use protoboard, you could build some of the stages pretty easily. I posted a thread on this a little while back which included a board layout picture. Your username or email address: Are there some transistors replacement databases on the web?
Post 7 of I agree with cetoole. Yes, my password is: Post 15 of 2sd144 continuing to use this site, you are consenting to our use of cookies.