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Big powerful speakers right on hardwood floor

post #1 of 6
11/25/12 at 4:19am
Thread Starter 
Hi
when I crank it up beyond reasonable (once in a while:p), if the music has sharp bass chords or bass drum, I hear a definite thump coming from the floor (I think)
Also, some very low frequency synthetizer notes will literrally shake the whole house down
I beleive the speakers or sub or both are litterally banging the floor.

When I purchased those speakers, they came with heavy duty rug spikes one could install (if room had rug, mine didn't), so I didn't install those
Speakers are all direct on a hardwood floor, And the metal mounting plates under the speakers (for rug spikes) are whats touching the wood floor first
Is there something I should put between the speaker & the floor to dampen the thumping.
I was thinking rubber foam, or even hard rubber mats, but maybe there are other ideas out there

I also saw in the speakers instruction sheets I have a place at the bottom where I could pour sand
Hesitant to go that way as they already weigh a ton
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post #2 of 6
11/25/12 at 4:56am
If your speakers aren't too big or heavy you could use these.
http://www.auralex.com/sound_isolation_mopad/sound_isolation_mopad.asp

Bigger ones you could use one of these.
http://www.auralex.com/sound_isolation_subdude/subdude.asp
http://www.auralex.com/sound_isolation_gramma/sound_isolation_gramma.asp

Or you can make something similar yourself. But keeping it from directly coupling with the floor will probably help.
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post #3 of 6
11/25/12 at 5:37am
Thread Starter 
Interesting!
Thanks, I will definetly look into those
One other question: As my sub is facing downward on the floor, I am therefore lead to beleive a full size mat wouldnt be recommended
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post #4 of 6
11/25/12 at 6:25am
Quote:
Originally Posted by pleh4help View Post

Hi
when I crank it up beyond reasonable (once in a while:p), if the music has sharp bass chords or bass drum, I hear a definite thump coming from the floor (I think)
Also, some very low frequency synthetizer notes will literrally shake the whole house down
That's caused by the house resonating in response to the acoustic output of the sub. The cure: turn it down.
Quote:
I beleive the speakers or sub or both are litterally banging the floor.
Only if their construction is so flimsy as to make them defective.
Quote:
Speakers are all direct on a hardwood floor, And the metal mounting plates under the speakers (for rug spikes) are whats touching the wood floor first
When the floor vibrates in resonance with the acoustic output of the sub it can transfer some of that vibration back to the sub.
Quote:
Is there something I should put between the speaker & the floor to dampen the thumping.
A piece of carpet or carpet padding will do. If you want to go really high tech buy one of these and cut pieces out of it:
http://www.walmart.com/ip/Stansport-Pack-Lite-Camping-Pad/9856753
Quote:
As my sub is facing downward on the floor, I am therefore lead to beleive a full size mat wouldnt be recommended
It will make no difference whatsoever. Fourteen to forty foot long wavelengths aren't affected by a mat, or anything else for that matter.
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post #5 of 6
11/25/12 at 6:26am
I'm not sure what you mean by downward facing on the floor? Is it a down firing sub? Is it a regular sub you turned on its side to place the driver facing the floor? If it is a downward firing sub one of the sub pads or gramma pads if it is larger would help as well.
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post #6 of 6
11/25/12 at 6:37am
Thread Starter 
Yes, by design, my sub can be set to fire either down or to the side
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