I like Murph's suggestion.

The XPA3 should have no problems running the M60s etc. although the VP180 might be a sticking point with it's 4 ohm load. but a single speaker might be easier on it than dual M80s.

Denon is just getting around releasing their new avr's with HDMI1.4a. Yamaha has some out there already.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70