Do you have room there for the on wall 150? I think it would play nicer with the M60s. the M2's would be my next choice as the M3's don't match all that well (I have tried them before with M80's). I recently set up a friend's living room with on wall 22's and a 150, with a sub and was pretty surprised at how well it sounds. I'm actually a fan of the on wall speakers. They do quite well when considering their physical limitations.