I bought the M22's a couple weeks ago. I like a bookshelf type speaker for HT and subs.
I didn't think the M22 would cut it as my movie room is going to be 13.5 x 18.5.

Well I was very surprised and so wasn't a friend. I took those speakers to my place of work, we have a boardroom 16 x 25 x 10 and not only did it fill the room but he went to the bottom floor ( two floor building ) and he can hear them plan as day.
Pioneer sc-1525
M80 HG Cherry