Is Porous absorption the best solution for sub 80hz decay issues? Or should I try creating tuned traps?
Hey Everyone,
I've moved into a new studio room; 32ft by 22.5 feet by 7 foot 10inches approximately. I'm wondering if anyone has experience treating sub bass decay in a large-ish room
Overall I've been able to get the acoustics pretty balanced and under control, but decay times (T30) in the sub-bass region are a little too strong. 53hz is a particularly rough mode (~3x length and ~2x width), but pretty much everything below 80hz isn't decaying fast enough.
I'm torn between 2 potential solutions.
Solution 1 is 9 17inch thick, 17 inch wide, 45 inch tall super chunk traps out of 2x2 pine, faced with 16 inch rockwool and stuffed with lighter fiberglass insulation inside. This is no small build and would take up a lot of floor space. But porous absorption always does something.
Alternative is to try creating tuned membrane traps targeting 53hz. Info on this is harder to find but it seems like it would take less depth and less insulation material in exchange for more rigid wood construction. I would value the potential cost and space savings immensely, but I worry I'd build them and then not have them be effective.
To summarize, how would you treat sub bass decay in a mix room? Any tips?