You're right, nothing new but try this, add a 3 db boost via bass settings to mimic the the bass hump(actually the M3s have a depressed midrange but I digress) the M3s have, this is the best of both worlds.
The M22s are actually capable of more bass output than the M3's as the dual 5.25's have more surface area than the single 6.5" and with the bigger cabinet it can play some nice bass, it's just that the rest of the frequency is played with the same authority so the bass doesn't sound as strong.
