Originally Posted by APranger
What's the thickness cutoff? I thought thicker == better for bass trapping?
I've got an air gap under my AT screen of about 14" high X 24" deep X 13 feet wide. Would I be better served stuffing that full of pink fluffy / denim or with a bunch of rigid fiberglass (OC 703 or similar).
There are so many factors involved, there are no hard and fast rules. If you have more than the typical corner style amount of room to commit, than you'd save a significant amount of money, and have a similar, but perhaps a bit higher level of performance by employing a "fluffy" bass trap system. Either way, the performance is similar when encountering very thick traps, it's all about the savings incurred.
Don't get hung up in the minutia, bass trapping is the low hanging fruit ,..as it were. Go for it, whichever method you adhere to. 705 w/membrane, 703, pink fluffy,...bass trapping has the potential to dramatically tame the response in room.