Thanks for the info.. Against the wall it is. Now I have a bit of a problem.. In one of the walls I don't have a stud right on the center to align the speaker. It is an external wall so it is not as easy as to work on it due to the insulation etc. Question... is it imperative to have the bracket on a stud? I'll be using the Power Bracket one.

Any advise?

M80
VP160
HSU STF2 Sub
4x M3 In-Ceiling
QS10H Side Surr.
QS8 Back Surr.
3x Monoblock Amps, DEN-X4300