Originally Posted by cpc
Hello folks. At the risk of adding yet another project to my yet to be undertaken home theatre build, could somebody enlighten me as to the purpose of the bass trap? I get that a bass trap is used to improve your rooms frequency response, but, what are bass traps made specifically to do? Do they mainly reduce peaks or do they affect nulls, or do they work their magic on a little of both? Do you simply measure your rooms frequency response and then design your bass trap from their?
I'm not sure what they actually do, but I do know that they work. When I first started doing a theater in my garage, the sound was absolutley horrible. I had a concrete floor, and reflective surfaces everywhere. I added carpet, and that helped dramatically to make it not so much of an echo chamber. Problem was, the bass was still boomy and out of control. I then went to Home Depot and got bales of R-13 fiberglass and stacked them in the corners, from the ceiling to the floor. Even though this was very much a ghetto-style solution, it actually worked. The bass was no longer boomy and out of control, but much more tight and crisp. Hard to explain, but it's something you can hear right away after you add the treatments.
Now, I'm totally redoing the theater, and I got rid of all those bales of fiberglass, cause I want to make it look nice, and not so ghetto-style. In the front corners, I'm going with the superchunk method, with the oc703. Unfortunately, I couldn't find the oc703 anywhere locally, and I paid thru the nose to get it, but hopefully it will actually even improve upon the bales of fiberglass I had before.