I agree with Alan. A room that big, which I'm assuming is being used primarily for movies, is a bit large to be using the M22ti as mains. If budget is a concern, buy your speakers a set at a time. I know it's hard, but it sounds like you've got a killer room set up, don't ruin it by purchasing the wrong speakers for it.
If it were me, in a room like that, specifically for HT, here's what I'd do:
M60ti mains
VP150 center
QS8 surrounds
QS8 rears
Hsu 1220HO sub
You've got a dedicated HT room...make the most of it! (It's a dream of mine that's YEARS away)
Get the mains, center and one set of surrounds first. Save up and grab the Hsu sub, and then finally add the last pair of QS8's to the rear.
Order everything from the
outlet That'll save you a good chunk of coin alone.
