The material Lugnut has stockpiled is called rigid insulation. It is fibreglass and is used for thermal and acoustic purposes. It is good stuff, comes in different thicknesses and densities. Another product I use is called duct liner. It is rigid fiberglass insulation with an acoustically transparent black surface that keeps the fiberglass fibers contained. it is used in air conditioning ducts for sound dampening. it is anti-microbal as well, as if that is important. You should be able to find any of this stuff in the yellow pages under insulation.
tapestries and posters help with sound absorption?
I have bare walls and wooden floors, and I sit about 6ft from my rig with my back against the wall. Would a tapestry directly behind me help with bright sound? what about a small carpet? I also get a lot of compressed foam posters from work, would those help? thanks for the help