D.I.Y. Bass Traps- calling acoustic techs....


I have been reading about diy bass traps but still have some questions. For me I am going to build some round tubes with fiberglass pipe wrap or Rock Wool. This is avail locally in 3 ft sections and 12 in diameter with a 2 in thick wall. The paper cover can be removed and wrapped with cloth. The ends can be glued on with mdf or plywood.
The problem I have is a 50 hz bummp. Most of what I am reading says these traps are good around 100 hz. Do you think stuffing each tube with more fiberglas insulation will make them more effective?
If so, should it be packed loose or tight?
blueskiespbd

Showing 1 response by ngjockey

Did something similar with stacked 20" pipe insulation and rock wool. It's an expensive way to go and not very effective below 80Hz, no matter how it's stuffed. For 50Hz, you have to get real creative, like built-in, floor to ceiling membrane traps. 50Hz problems are not that typical and may be just a harmonic or resonance (pushing back) from an adjacent room.