I tried searching, but didn't find what I was looking for . . . I have a pair of NHT SB1 in-wall speakers that I am going to install in my garage and integrate into my Niles Audio multi-zone system. I'm wondering what the best way to install them is to acheive optimum sound quality. Garage construction is 2x4 framing 16" on-center with plywood and tyvek homewrap exterior covered with brick. The wall they are going in is an exterior wall. I'm using R19 fiberglass insulation with paper facing on the wall, then covering it with 5/8" drywall. 1. Should I create an "enclosure" where the speakers will be by crossing between the studs with 2x4's or MDF? 2. I would like to insulate behind the speakers to keep my garage as warm as possible. How should I go about this, and what material should I use? Any other tips are appreciated as well. Thanks . . .