Hi Tree,
The H/K AVR7200 has fairly massive authentic power output for a receiver and will certainly have more than ample power output to drive the Epic 80 and the 4-ohm M80s to clean, very loud listening levels in your current room or even a larger one in the future.
Or course, if you eventually put the system into one of those Texas-size "great rooms" with a vaulted ceiling and 8,000 cu ft of space, you may want to go to a separate power amp on the main channels along with two subs, depending on your taste for extreme SPLs. The M80s will really deliver in huge rooms when you feed them 250 watts per channel or more.
You could still use the 7200 as a processor--it's smooth and versatile--and ues its internal amps for the surrounds.
Regards,
