I got the M22s. What helped me make up my mind, since I couldn't hear them, was the the reviews and NRC measurements by SoundStage( M3,12/2000; M22,11/2001)which probably can be found most easily at the ecoustics.com site.
If you examine the anechoic frequency curves you'll see that there's actually very little difference in bass extension between the two. In fact the M3 has a slightly elevated response in the upper bass from about 80-150hz which apparently gives an impression of greater"fullness" in the bass. I was more impressed with the flat response of the M22s in the upper bass, mid-range and treble, so I ordered them. I found that what the reviewer reported wasn't an exaggeration. The mid-range and treble are truly excellent and make the speakers a tremendous bargain. The bass is adequate for nearly all music( although perhaps not for movie crash/boom/bang). Using my test-tone CD, I found that the room reinforcement in my listening room resulted in strong bass at 50hz, much weaker but still usable response at 40hz and a just barely audible 32hz.
I don't believe that you can go wrong with the M22s.
Last edited by JohnK; 08/10/02 05:38 AM.
