I am assembling my 6.1 home theater sound system with Klipsch Reference series RCW-5 in wall speakers. Would it benefit the sound and/or help control noise going into the other rooms by making in wall boxes? I plan on using ceiling tile like in office buildings. It is dense and kind of soft. Then I would insulate the box with acoustic speaker box insulation. The boxes would only be about 3 1/2 inches deep to fit in the cavity, and maybe an inch or so bigger than the span wise direction of the speaker. I can assemble the boxes inside the wall and then glue together with adhesive caulk. Any thoughts or experience out there?