I've A/B my M3s with someone else's M22s. What others describe is true. The M3's have a fuller sound (low end) and the M22s have a more pronounced midrange.

So if you ever wouldn't want to use a sub then I would pick the M3s but if you don't mind having a sub always in the mix the M22's are a better choice.

-Ben
HT v2.0
HT v1.0