McCormack has some new products coming out. Based on the strength of their amps/preamps out now, I don't think you could possibly be disappointed.They sound positively harmonius with B&Ws--the Proacs (also brit design) have similar strengths and would likely be a good match. Also, if you're interested in lexicon, by all means check out Bryston's 5BST or 9BST--great HT amps (20 yr warranty!!). good luck.
Amplifiers for ProAcs
I am looking for a surround sound processor/power amp. for Proac speakers - Response 1.5 main speakers, CC1 center and Tablette rears. Dealer recommended Harmon Kardon Signature Series. I have also seen used Lexicon DC-1 with ATI combinations on the net for sale. Any suggestions would be greatly appriciated. System is used probably more for home theatre. Both packages come to around $3,300