Please excuse my crude Goolge Sketch-up drawing. My living room is about 20x30. I have a pair of in-wall speakers that I'll be using as surrounds. Due to doors and stairs I'm a bit limited on my rear speaker placement. The red dots are where I was going to put them, but the height of the stairs and the entryway wall make it so that the speakers cannot be in line with each other. Also, the right speaker will be inches from that entryway wall (There are windows just next to where that dot is). Alternatively, I could place the speakers in the rear wall, where the blue dots are. Any suggestions would be greatly appreciated. Thanks!