I am having trouble working out where to site my surround speakers. The AELITE ONE will be my surround speakers. I have no option but to wall mount due to a door being where one of the speakers would stand. Which would be the better choice ? 1. Mount the speakers on the back wall. 2. Mount on the side walls. The regular seating position will be a sofa on the back wall, but, when I watch movies, I will be sitting forward of this position. I hope my explanation is understandable. If not, shout.......!!!!!!!!! Thanks guys. Johnny.