There's some disconnect here. The M60s can't play "louder" than the M22s(or for that matter, the M2s)except in the bass. Both the M22 and M60 use the same single tweeter above about 3000Hz. The M22 uses two rather than one 5 1/4" mid-range drivers, so if anything, it would have higher level capability in the mid-range than the M60. The size of the enclosure is significant with regard to bass level and extension, but has nothing to do with mid-range or treble, which is entirely a function of the driver or drivers employed for those frequencies.

Enjoy the music, not the equipment.