I agree with spiff here 100%.
The M60s need room, much more than i have in our relatively small 13x16 room (open at the rear to 20').
A sitting position at 8' with a separation of 7' between the M60s is tight and does not work all that well.
The
room layout is a primary influence on sound.
In addition, bigger is not always better!
If you are unsure about the sound of Axioms in your house, take a 30 day demo of the M22s. They sound identical to the M60 in the 'brightness' category. If you do not like the M22s for this quality, then you will not like the M60s either.