Wow it has been awhile. We are getting settled into the house. I have finished building a few storage areas that have been a bit more important than the theater build. I saw that most build their stage and riser 1/4" away from the wall. Do you fill this gap with insulation or just leave it air. Also do you keep the plywood / OSB platform a 1/4" away from the walls as well? Makes sense if you do.
The plan is two potentially place two extra subwoofers at the rear of the room on top of the riser. The plan was to build 3 separate platforms. 2 with sand for the subs and 1 for the seats. When attaching plywood can the plywood/OSB be screwed to all of the frames as one or do I need to separate that into 3's as well. Does that make sense?