Krell

I am surprised that a well known name like Krell would mix components within a single unit, but if you don't hear a difference and it was factory done, I guess it's no harm no foul.

I would have expected a manufacturer would just use all black caps of the new line in making a new amp and save the extra blue caps for incoming spares to be used on amps to be serviced that used the blue caps.

I had a KSA200S that Krell re-capped. Came back with 2ea black & 2ea blue. That was ok. Problem was FedX dropped it and half the components inside came apart.
Ever seem a growm man cry? That was the day.
-John

I agree with Jmcgrogan2.

Hey, if you want to and agree to pay the costs to replace all of the power supply caps to match them, then more power to you. It is very expensive and totally unncecessary. Same quality caps, same ratings, same or higher voltage rating, you will not hear or experience a difference. Take for example a brand new amp, where one power supply cap failed after say... three months. Still under warranty, but the manufacturer got a better deal on power supply caps from a new parts supplier. Same ratings. So, I'm going to replace all the caps? No. I will replace the caps on a particular side only. to expensive otherwise. Understand, I'm talking about power supply caps, not caps in the signal/audio circuit path. Even then, unless I was doing a total upgrade on a amp, I probably wouldn't replace all of the signal caps just because one cap failed. I would install an equal quality or better quality cap, test the amp to make sure it meets spec, listen for any issues and I'm done. Just me, but I think you are making a big deal out of a small issue. But, that's me. Again, on power supply caps, if they were old or showing wear, I would ask the customer if they are willing to spend money to replace them all. I definitely wouldn't replace them all without asking first. Too much money involved.

enjoy

Move four of the black caps to the blue side or vice versa.

Harmony.

Glad to help.