I'll revive this thread again since I was also looking for a SS amp and happily found a used Pass INT-25 (the XA25 with and a built in preamp). There were no options to audition so I bought it purely on the awesome reviews and the Pass Labs reputation. I also like the very simple design of the amp, it has exactly what I need and nothing more. Class A for the first 25 watts. The Absolute Sound review of the Micromega did mention a "meaningful improvement" with the Pass XA 60.8 monoblocks compared to the Micromega. I'm guessing you would get the same improvement, and maybe more, with the INT-25.