Rocky, are we talking about just a 2 speaker set up, or a surround setup?
The 22s ARE wall mountable using the
Full Metal Bracket which can hold up to 40 lbs. The 22s are only 16 lbs. Obviously the brackets will also work with the M2s and M3s as well.
If you are talking about a stereo setup only, it is generally considered that the M3 is the better choice. It is a bit more "laid back" than the M2s and M22s, but it plays a little deeper in the frequency range than the M2s, and about the same as the M22s. However, that is a large room. The 22s will play louder, and probably do a better job of filling that space, though the M3s would do OK. Any of the 3 speakers will do better with a sub, of course.
Were it I, I would go with either the M3s or M22s, letting budget, and how much space can be alloted to the speakers be the deciding factors.
