Aisip, the Ref75 is a wonderful amp. Besides the power meters I had no problem with it so far (appr 1800 hrs). If your speakers have a decent efficiency and are not too hard to drive the Ref75 will impress you (I use Coincident Pure Reference speakers). It combines many positive attributes and simply gets out of the way. The Ref5SE was much better than the Ref3 I owned as well - but the Ref10 is simply in a class of it's own (as long as it works ;-)). I just hope the replacement Ref10 (expected to arrive on Tuesday) does not blow up on me again - because I don't see me looking for another preamp anytime soon.
Feel free to email me if you have more questions about sonic performance.
Feel free to email me if you have more questions about sonic performance.