Well, you got a nice deal on the Montis. I don't think you'd have a problem getting your money back if they don't work out.
Are you familiar with the Martin Logan Owners website? In the Room Acoustics forum there's a thread (14x18x8) where someone posts that his Montis sound good in a room about the size of yours.
There is also a thread in there somewhere where someone did extensive testing of room treatments and came to the conclusion that using absorption behind the speakers worked the best. That might especially be worth a try if you can't get them out very far from the front wall.
Let me know what you think after you get a chance to listen to them.
Are you familiar with the Martin Logan Owners website? In the Room Acoustics forum there's a thread (14x18x8) where someone posts that his Montis sound good in a room about the size of yours.
There is also a thread in there somewhere where someone did extensive testing of room treatments and came to the conclusion that using absorption behind the speakers worked the best. That might especially be worth a try if you can't get them out very far from the front wall.
Let me know what you think after you get a chance to listen to them.