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In Reply to: RE: Question about regulator of Philips CD104 posted by Thorsten on January 28, 2017 at 02:37:29
Hi Thorsten,
I have a Mission working DAD7000, which sounds smooth but very veiled to me, compared to my modest NAD C525 BEE and various Sony ES machines from the 90's in my collection. When I changed the belt so that the door would work, I was impressed at how well built this player is. It had occurred to me that a replacement of the electrolytic capacitors could really help. After all, the reputation is that this player should sound good. I am also suspicious of the mysterious box that mission put before the output jack, that I suspect is there to smooth the sound, but could be adding some veiling.
Lampizator suggests Burr Brown OPA2604 for the Op-Amp. Do you thing that it would be suitable?
Dave
Follow Ups:
Hi,
Never worked on a Mission, but not many comments here, but a full recap does tend to help a lot on older gear. Full Recap here meaning replacing each and every electrolytic cap in sight with modern alternatives.
I would not use the OPA2604 these days. But I really don't want to get into "Op-Amp du jour" debates. I still think the correct choice for CDP are low noise, high speed Video Op-Amp's.
Ciao T
At 20 bits, you are on the verge of dynamic range covering fly-farts-at-20-feet to untolerable pain. Really, what more could we need?
Keep me posted and your project -Crazy Dave
Worst case scenario it will be great solder practice!
Dave
We need more "modders" cd players- Dave.
Have fun!
Will do!
Dave
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