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In Reply to: RE: Combined Bass Traps on Ceiling? posted by Ferrstein on January 20, 2009 at 04:47:48
At 30 Hz bass will be low from most speakers because they're rolling off by then, but there's also very little musical content below 30 Hz apart from organ, the bottom 29 Hz note on a piano, and I think a couple of low brass instruments. Bottom note on a double bass/electric bass is actually 41 Hz. Unnatural sounding bass is often a different issue involving issues other than level.
I'd start with the area rug. Damping between the speakers and floor may or may not be a good idea and the only way to find out is to try. There are various ways to provide damping and not all are equal so it's hard to draw conclusions from one experiment. You may get lucky first time or you may not. As far as the unnatural sounding bass goes, damping may help that or it may exacerbate it. Unfortunately there's only one way to find out and that is by trying it. There's more than a few things in audio where that's true.
I definitely think low racks are better than high but I don't think you'll get much in the way of diffusion from low racks. They'll certainly have some effect on reflections from the area in which they're located but it will probably be more in the way of changing the angle of reflection rather than diffusing the reflections that occur.
David Aiken
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