Abe, if you would like to see numerous digital photos for my stage/proscenium in various stages of construction....check out my link below. I added comments to most of my photos that walk you through the process. Ted's tip on how to get the front radius is great...that's exactly what I did and it turned out great!! My photo's go from the basic construction to my finished theater.
First Question is I want to post some pictures here, but the IMG thing does not work. How do I do it?
I need to know if this will do well for a stage. I want to put the 2x4 "joists" on the floor decoupled. The stage is about 9' wide. Then insulate it between the on center 16" joists. Finally screw in the 3/4" plywood.
My question is: SHoud this stage touch any of teh FINISHED walls? The walls are also painted. What do I do. The two tower speakers are going to be placed in front of the stage on the concrete "carpeted" floor. They each have 2- 10" subwoofers. The center channel will be on the stage.
To reduce low frequency transmission through the stage and walls, the stage should probably not touch the side or back wall. The walls of the room provide an envelope to contain the sound. Furniture, the stage and other things exist inside the envelope.
You should consider using a multiple layered design such as Ted White did for the stage floor. Also consider filling the stage with sand or insulation to help absorb sound, and prevent the stage from becoming a resonating chamber.
I'm with settopguy. Walls make the envelope. Stage is a fixture in the envelope. If the stage will have a sub sitting on it, fill the stage with sand. If the sub is elsewhere, you could go with fiberglass.
I'm going to build a stage on the second floor of my house. I am a little worried about all that sand on the second floor. Would I get any benifit by filling the stage under the subs with sand, and having fiberglass insulation under the other part?
Does that spray in foam (the kind that expands) do any good in controling resonance?
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