John Sayers' Recording Studio Design Forum Archive

If you make a corner bass trap... the owens corning 703 air-space 703, covered in fabric with a reflective side facing the room (just the backing, not plywood)... is it possible to be too thick? For example, can you use like 6 inches of 703, then air space, then 6 inches of 703?

Would that be a more effective bass trap only costing you room space, and reflecting the highs?

Or is it bad or not beneficial to go that thick?

Tom,

> 703 air-space 703 <

That's not the best way to do it. Bass traps do the most good when straddling the corners, and the thicker the better. The fiberglass should be contiguous, not spaced apart. 3 inches thick is good, 4 inches is better, and 6 or even 8 inches is better still. But if you have enough material to make traps eight inches thick, you'd do better to have twice as many traps that are four inches thick. That way you can cover more total corner surface.

--Ethan