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May 29, at 6: To your original question: May 29, at 8: Post 15 of Is there somewhere where we can buy PCBs of discrete analog stages?

Post 13 of The datasheet parts are: Supposed to be really good and cheap Post 9 of Well, there’s always datasheeet LC Audio Zapfilter http: May 29, at 5: Post 4 of May 30, at Post 6 of I would guess at least some of them are for output muting.

Sometimes I can hear noise when the player is searching for a track, but the increase in sound quality is worth it. May 30, at 6: Colin cetoole looked the design over and saw some things 2sx1944 didn’t like.


Post 10 of Thanks for the help.

2SD1944 Datasheet

This isnt for the schematic I am currently working on, but should be pretty good. After bypassing the 2se1944 in the power supply and adding damping to the chassis I tackled the analog stage. I will post some pictures of the board.

May 9, at 3: Then I took the output straight off the opamp, thru two huge solen caps, straight to the output jacks, effectively bypassing the stock caps, resistors, and muting transistors.

Datasheets | SimonsDialogs

Post 5 of May 29, at datazheet Here are some pics of the board. Post 1 of It would be much more worthwhile to replace the whole output stage, preferably with a discrete solution. You must log in or sign up to reply here. May 28, at 6: Do you already have an account?

Post 3 of If you can etch your own board, or use protoboard, you could build datashee of the stages pretty easily. By continuing to use this site, you are consenting to our use of cookies. Unfortunately, I can not find the schema. May 11, at 2: Headphone Reviews and Discussion – Head-Fi. Post 8 of May 11, at 7: Also, the Pass D1 stage is another one to look at.


Are there some transistors replacement databases on the web? I posted a thread on this a little while back which included a board layout picture. I would definitely recommend getting a schematic if possible before just shotgunning parts out. Too expensive mod compared to the DAC performance, unless there are some great and cheap good analog stages. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.

2SD Datasheet PDF – Rohm

Post 14 of Current or voltage output? Hope will raise sound quality. The PCB set datawheet 18 Euro, and he can supply parts as well. Your username or email address: You’ll see the signal from the opamp output will go thru a cap and a resistor or two followed by the muting transistors.