gem,

There is an argument for judging a speaker on its own merits or with the use of a sub.

Interestingly, the low end of the M22's -/+3db point is 60hz and the 340's is 55hz. I wonder where that "thud" falls.

No doubt, each speaker has its merits, but even with a sub, the bass of the speakers will sound different....because they are different.

curtis