Read everything you can on the www.Realtraps.com website. They give you the best information with wonderfully comprehensive details.
FYI: Foam is not all that effective as a bass trap even if the website selling it says so. Compressed fiberglass or bonded acoustical cotton are leagues better down load and across the board.
FYI: Foam is not all that effective as a bass trap even if the website selling it says so. Compressed fiberglass or bonded acoustical cotton are leagues better down load and across the board.