Bryston 14 b sst or McCormack DNA 2 LAE or DNA-500 for the ones you listed the Pass X600 I love those amps, but for the price the DNA 2 LAE on the used market plenty of power.
With those speakers, I too would choose the MC501.
Read Brian's great thread. He had 802s and ended up using McIntosh amps with them after trying many others: http://forum.audiogon.com/cgi-bin/fr.pl?vevol&1055189481
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