I could use the same...
Hi,
I've actually been looking for this as well. I have a Resolution Audio CD-50 that uses four of the PCM63 DAC's, and I'd like to modify the lousy op-amp output to somthing more like what Nelson used in the D1.
My e-mail is: owen.columbus@littletreeaudio dot com
remove the word "dot" and put in a .
Cheers,
Owen
Hi,
I've actually been looking for this as well. I have a Resolution Audio CD-50 that uses four of the PCM63 DAC's, and I'd like to modify the lousy op-amp output to somthing more like what Nelson used in the D1.
My e-mail is: owen.columbus@littletreeaudio dot com
remove the word "dot" and put in a .
Cheers,
Owen
Hi there,
I'm a big fan of Passlabs and i would like to modify my denon dcd 1290 more in the passlabs way.
Or perhaps build a balanced DAC.
Could someone send me the schematics of it to?
Would sound nice with my Bosoz and mini alephs.
Thanx Richard
rwa1001@hotmail.com
I'm a big fan of Passlabs and i would like to modify my denon dcd 1290 more in the passlabs way.
Or perhaps build a balanced DAC.
Could someone send me the schematics of it to?
Would sound nice with my Bosoz and mini alephs.
Thanx Richard
rwa1001@hotmail.com
Not off topic at all... infact, it's the first proper D1 related question in the whole thread.
I finished a modified output board for my Resolution Audio CD50 a few months ago, and the standard issue National Semi LM regualtors have been working great for me. I mounted them on heatsinks to be safe, but I'm pretty sure you could get away without them.
There might be some advantage to using ultra-high quality regulators, but it's unlikely given the better than average power supply noise rejection of the balanced circuit. Either way, I can say for sure the LM regulators work fine, if you feel you need more than that, give it a shot.
Just a side note, I have a board design with the output stage if you'd like it. It might be a good start for you, all that you have to do is design the preceding DAC circuitry.
All the best with your project!
Owen
I finished a modified output board for my Resolution Audio CD50 a few months ago, and the standard issue National Semi LM regualtors have been working great for me. I mounted them on heatsinks to be safe, but I'm pretty sure you could get away without them.
There might be some advantage to using ultra-high quality regulators, but it's unlikely given the better than average power supply noise rejection of the balanced circuit. Either way, I can say for sure the LM regulators work fine, if you feel you need more than that, give it a shot.
Just a side note, I have a board design with the output stage if you'd like it. It might be a good start for you, all that you have to do is design the preceding DAC circuitry.
All the best with your project!
Owen
Attachments
if its possible, please send me a copy of the service manual, i would like to mod some of my CDP's output stages. email: peterpan188@gmail.com
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