I want to mount the Bic acoustech surrounds on the wall. First question, can I mount them near the top of the wall, with like 1' between the surround and the ceiling itself? Second question, how do I go about mounting one of those, they have mounting tabs on the back that are spaced 8 inches apart. So I can mount one side of the speaker to the stud, well can I mount the other side straight to the drywall? What do you guy's recommend?