Welcome, Ben.

That's a fairly large space. Can you tell us about the objects at each end of the room? My first assumption is that the vaulted object is a recessed window, but I have no idea what the small square object at the opposite end is.

I ask because it will be helpful to know where you are intending to place your TV/screen? First assumption is that it will be at one of the ends of the room. If so, that means your side surrounds will have to deal with the sloped ceiling. If you intend to use QS series surrounds, I initially thought you should use the Full Metal Brackets (either the wall or ceiling model), to keep the top and bottom of the surrounds parallel to the floor. But, I got to thinking about it, and, considering how forgiving the QS surrounds are, when it comes to placement, I'm not sure but what flush mounting would work fine. Anybody else got any thoughts or comments about that?

Any thoughts or comments about reflections from the sloped ceiling?

As to specific speakers, recommendations would depend upon how far from the seating area they will be placed. Without that information I'm just guessing that the M22s might work, the M60s would probably be fine, and the M80s would certainly be enough. I'd go with the VP150 for center, and the QS8s for surrounds.

That large volume comes into play when it comes down to the subwoofer. Were it I, I'd go with the largest sub I could afford, and I wouldn't go less than the EP500. Two would be better than one.

Here's my best advice, though. Pick up the phone and give Axiom a call. They are really nice people and will give you the best advice you'll get. They won't try to talk you into anything you neither need nor want. In fact, more often than not, they recommend less than the caller has in mind (with a room your size, that may not be the case, however ). They are much more interested in having a satisfied customer than in making a quick sale. The cost of the call will be money well spent.

Again, welcome to the forum.


Jack

"People generally quarrel because they cannot argue." - G. K. Chesterton