Jonah,
How far are you from your left and right mains? And how far are the mains from eachother?
You might get cleaner response if you move your M80s apart a bit further (if the distance from M80 to M80 is less than your listening position to the M80s). You could move the EP500 inside of the left M80, sort of mid wall, this will give you cleaner bass response, less boomy. I am sure the wife won't really care as the sub and the M80 are just switching places.
Then the right M80 has to move out more to the right to match the left M80.
MANNNNN, I love that maple....droooooooooooooooooooooools.
-Hutz
