Spacing out the 703 will improve the lower frequency absorption (https://www.globalspec.com/reference/68985/203279/effect-of-airspace-behind-absorbent), though not nearly as much as increasing the thickness (https://www.globalspec.com/reference/68984/203279/effect-of-thickness-of-absorbent).
ceiling acoustic treatment
Just moved my whole system downstairs into the basement so that I can experiment with acoustic treatments. Room is 18'x30' with 10' ceilings.
I'm trying out Owens Corning 703 on walls and ceiling.
My question is if I should have an air space between the ceiling and the panel or should it be flush to the ceiling?
I'm trying out Owens Corning 703 on walls and ceiling.
My question is if I should have an air space between the ceiling and the panel or should it be flush to the ceiling?