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greenelec
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Last seen: 4 months 1 week ago
Joined: Feb 10 2006 - 12:37am
Subwoofer on carpet

I have had my REL Storm placed on the (new)carpet w/spikes for several months. The sound has been ok, but a little bit boomy for my taste. As an experiment I obtained a 16" sq. ceramic tile from Home Depot and put it under the sub.

I was thinking that the carpet and pad were adversly affecting the output by absorbing some freqs and trying to compensate, I was over driving the sub.

Well, when I placed the sub on the tile, the bass energy in the room fell of to almost nothing. What a surprise, for me anyway. I removed the tile, changed the sub location by moving it farther away from the wall floor corner, w/o spikes, and now it sounds better than ever.

I was surprised that the tile would suck up the output the way it did.

Elk
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Joined: Dec 26 2006 - 6:32am
Re: Subwoofer on carpet

One possibility is that the tile helps keep the floor itself from being energized. Wood floors can serve as a giant subwoofer soundboard.

Of course if you have a concrete floor this theory is toast.

rvance
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Joined: Sep 8 2007 - 9:58am
Re: Subwoofer on carpet

My experience was just the opposite. I wasn't getting well defined bass with my newer Wharfedale SW-300 downfiring 12" (and much less energy on movie soundtracks than my front fire 15"). Wharfedale recommends a slab in the case of thick carpet, so I got an 18"X 18" X 1/2" thick square of polished granite for the 12 incher and switched to the rubber feet. With the built in remote controlled active crossover/volume I can tighten up the bass on multi-channel music. Charlie Hayden, Brian Bromberg, Talking Heads and other bass heavy discs are much more tuneful with the 12". It made a big difference (good), but the 15 incher (on carpet spikes- no slab) conveys more dramatic, if less accurate, bass on movies, if you're into that sort of thing. Now I have to try to make room for both so I can switch between them depending on a/v source.

greenelec
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Joined: Feb 10 2006 - 12:37am
Re: Subwoofer on carpet

Yes Elk, it is carpet and pad on wood floor. rvance- I had the feeling that a different material would act differently. This week end I am going to get a slab of concrete, and a piece of wood and take some sound pressure measurements. I'll post results.

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