Congrats on the M60, I had mine on a 10x11x8 room for a year or so. I found them bright at first, reading here and w/ some help from Axiom's staff we figure out that the problem was room reflections. I had an all concrete walls and ceramic floor and hardly any furniture in the room.
The m60s LOVES acoustic jazz... I have Peter Cincotti cd , it has one of the best recorded acoustic bass I’ve heard.

~Jaime

The sailor does not pray for wind, he learns to sail. --Lindborg