845 SET recommendation

If you are interested in used, you could also look into the Bel Canto amps. There are several for sale right now on Audiogon. They are really nice sounding, and well reviewed when they were in production. The company still stands behind them and provides service.

I second the recommendation of ASL amps. I have the 805s; they sound great and have been 100% reliable.
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WAVAC...if price is no object.

MD-805m monoblock is 55 w/ch @ $19,000
HE-805 singe chassis is 45 w/ch @ $45,000

But you will be one of the privileged few who owns the best!

FYI ASL 845 DOA 50% YMMV IMO
:-)

Verdier from France also makes an 845 that might be worth looking into.