Well, for amps, I definitely trust ATI amps or one of their 200WPC & 300WPC OEMs (Outlaw Audio, Mark Levinson, Lexicon, Cary Audio, Theta Digital, B&K, JBL Synthesis). Even ATI's 60WPC amps are stable down to 1 ohms (measured by The Audio Critic). So their 200WPC & 300WPC amps are monsters. And they are super clean - SNR 120dB, Crosstalk -100dB 20Hz-20kHz, etc.
The (ATI-made) Outlaw Audio 200WPC x 7Ch FULLY BALANCED amp - Model 7700 - is on sale for $1900 (already mentioned by ImcLoud).