Late getting back...
@kw6, prior to the XA25 I had a CJ MF2550 SS amp. Great amp, but I moved it to my office system due to a what seemed to be a position-specific buzzing noise; the amp is much, much quieter in its new location.
@pryso, I have Wilson Sophia 3 speakers. The XA25 has more than enough power for my uses with these speakers, which are easy to drive.