[sandbag]

From a seated position, it is hard to locate the actual height of rear drivers. I've had mine from 18" to just 6" below the ceiling. I now am leaning to near-ceiling, widely-spaced, but out of the corners, and more or less angled down and in towards the seating area. On the other hand, I like dipole sides, since I can place them right up to the wall and let them bounce all they want. I could always "hear" monopole sides, wherever they were, except when I mounted them higher and well outside the mains. I think you need multiple sides and suitable electronics to get great surround. sound from just a left and right side. N