I am in the initial planning stages for my basement home theater. The room is 16.5x18 and completely finished with drywall and paint, etc..(what a waste) Because it is already finished, I need a way to get wiring to wall sconces, etc... Would it make sense to build out a wall column and put the sconce on it? Could I also place a speaker below the sconce and have the column covered with fabric? I really hope to not have to tear out huge chunks of drywall in the process of building. One problem I see is having the electrical and speaker wire through the same hole in top plate. Any comments?