I went with Harmonic Precision HP mono amps. Not tube but incredibly efficient with tube like sound. Incredibly due to the efficiency these amps run very cool and are low wpc, which superficially turned me off in building a new main system. I was looking at the big levinson monos and thought I needed rated power. Obviously tubes kill that idea. These amps have huge dynamic power. The weird thing is that over a year down the line I still think they are openning up. They took an extensive dedicated breakin period. Anyone who thinks breakin is bogus ought to have heard the difference. My wife commented after a week breakin that she thought I had gotten a new piece of equipment again and at least this one sounded very good.
You may want to check these out.
You may want to check these out.