I have very large cardboard boxes of sound absorption material. I didn't want to build them yet because of the fiberglass getting in my house in the winter. I set them in my basement studio and I swear they are working great. This makes me wonder if leaving them in cardboard boxes actually works or if I am just crazy.
Also, what happens if they are built into wood frames so they can be used as furniture? How much air space us required for them to work?
