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I have to admit, I did change the original op-amp for a sparkle op-amp in the same way as in the review. I did change op-amp 2. And indeed I did not hear any difference. So the question is, when is it usefull to swapp the op-ampt ?

Muses02

No problems here. My amps v3's are playing now for a couple of months without any hassle. They are powered by a 48v/10a power block. I do enjoy them every day. I did an op amp change for sound more of my liking. The amps are connected with audio monitor bronze bx2 speakers. Remarkable, one small...

my solution..

So I got my fosi monoblock at the beginning of this month (august). I did buy them with 20% discount. A great bargain I guess. I live in the Netherlands, there were no any problems in delivery from Fosi it self. The package was solid and undamaged. I have to try to build a small set up from...