Well I'm in no way trying to slam the EP800 here at all, but I feel the bass that does come out of the M80's is far tighter than what comes out of the EP800. I would not want to set my M80's to small and miss out on their extraordinary bass capabilities!

My Stuff :

M80's
QS8's
VP150
EP800
Denon 4802
Emotiva XPA-3
Samsung BD-P3600
Sharp 65 Inch Aquos LCD