I was thinking the same thing as Fred, just dump Audyssey and try it with a 80hz XO for the rears, sides and center and 60hz for the mains and see how it sounds.

I am thinking the M2s wouldn't be any better than the QS's, they have a high roll off point as well according to their graph. Maybe a set of M3's with that upper bass hump/depressed mid graph would be the better choice for rear duty in that large of a room, other than a second sub placed behind the listener to even out the bass response through out the room which really appears to be the main issue.


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