Although not M80's, for quite a while I did use towers all around when I upgraded to my M80's (fronts)from Paradigm Monitor 9's. I had my Paradigm Monitor 9's for sides and rears and I VERY much prefer Qs8's in place of the towers as they give a much more enveloping sound for movies. For music it was a treat but overkill in my 20 x 24 foot room.

Cam

The only reasonable argument for owning a gun is to protect yourself from the police.