Upgrading caps and opamps on the minidsp 8x12 v2 DL?

[Andre2142]

I've been reading posts about replacing better quality components on a minidsp 4x10 and wondered if I could do the same with my minidsp 8x12 v2 DL.

• Should I first replace all through-hole capacitors with better-quality caps of the same rating? (couplings - Nichicon Muse bipolar)
• Could I replace the power supply capacitors with higher quality ones like the Panasonic Fc?
• Could I replace the JRC2068 opamps with the OPA1642 without additional modifications?

This is the board - there are x6 JRC2068's on the top and x6 on the bottom by the RCA outputs

I noticed there are x12 Nichicon KC 47uf 25v on the first row which I believe are the coupling caps, and there are another x12 100uf 25v on the second row, but I don't know what those are exactly.

Lastly a shot of what I believe to be the power supply caps

This would be my first time modifying a DSP so any tips would be appreciated.

 

[Speedskater]

As Jay Leno would say:
"what could possibly go wrong?"

 

[JeffS7444]

Should I first replace all through-hole capacitors with better-quality caps of the same rating? (couplings - Nichicon Muse bipolar)

Not unless the stock parts are known to be a source of failure.

Could I replace the power supply capacitors with higher quality ones like the Panasonic Fc?

Ditto

Could I replace the JRC2068 opamps with the OPA1642 without additional modifications?

No. It appears that pin configuration is different, so one is not a drop-in replacement for the other.

I used to fuss with audiophile capacitors a lot, and at the time it seemed to make a great difference. The problem is that my method of comparing sonic differences was typical audiophile sloppy. Had I conducted proper ABX comparisons, I'd have realized much sooner that I was wasting my time and money.