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Speaker Isolation Foam

post #1 of 7
5/8/09 at 6:40am
Thread Starter 
Does anyone use this type of speaker isolation foam? I have my bookshelf speakers sitting on top of my entertainment system and this looks like it might help with vibration. Any thoughts?

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post #2 of 7
5/8/09 at 8:34am

Re: Speaker Isolation Foam

Yes, I have some from Aurelex. My center sitting on them. It helps keep the vibrations on my home made speaker rack to a minimum. It also helps angle and secure the speaker.

I also have 2 GRAMMAS under my sub. Made a huge difference. No more rattles from the windows and doors.

BTW - these can be used to sit speakers flat as well.
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post #3 of 7
5/8/09 at 10:03am
Thread Starter 

Re: Speaker Isolation Foam

Quote:
Originally Posted by David Willow
Yes, I have some from Aurelex. My center sitting on them. It helps keep the vibrations on my home made speaker rack to a minimum. It also helps angle and secure the speaker.

I also have 2 GRAMMAS under my sub. Made a huge difference. No more rattles from the windows and doors.

BTW - these can be used to sit speakers flat as well.

Is your sub "down firing"? Do you think it is necessary for front firing subs?
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post #4 of 7
5/8/09 at 12:47pm

Re: Speaker Isolation Foam

Quote:
Originally Posted by Keith G
Is your sub "down firing"? Do you think it is necessary for front firing subs?

Yes, it is down firing (with its own plate). However, it does not matter for the GRAMMA (or Subdude) since the purpose is to 'decouple' the sub from the floor. Either style sub can cause vibrations.
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post #5 of 7
5/8/09 at 4:04pm

Re: Speaker Isolation Foam

I still don't understand the point of these. They sell speaker spikes to couple your speakers to the floor so they won't move.

-Robert
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post #6 of 7
5/8/09 at 8:48pm

Re: Speaker Isolation Foam

Quote:
Originally Posted by Robert_J
I still don't understand the point of these. They sell speaker spikes to couple your speakers to the floor so they won't move.

-Robert

Huh? It has nothing to do with movement. Its about stopping the floor from becoming part of the sound. Plus, were are talking about the center channel. In my case, I have a shelf I created for the top of my TV. It is anchored in the wall and rests on the TV. I added the Auralex product to help angle the speaker and help secure it on the shelf. It also reduces the vibration of the shelf itself.

The GRAMMA goes under the sub. Again, the purpose is to remove the floor from the sound. I'm pretty certain that my 200 pound sub will not be moving.
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post #7 of 7
5/8/09 at 10:40pm

Re: Speaker Isolation Foam

Quote:
Originally Posted by David Willow
Huh? It has nothing to do with movement. Its about stopping the floor from becoming part of the sound. Plus, were are talking about the center channel. In my case, I have a shelf I created for the top of my TV. It is anchored in the wall and rests on the TV. I added the Auralex product to help angle the speaker and help secure it on the shelf. It also reduces the vibration of the shelf itself.

The GRAMMA goes under the sub. Again, the purpose is to remove the floor from the sound. I'm pretty certain that my 200 pound sub will not be moving.
But my center channel is built out of 1" MDF and has absolutely no cabinet vibrations. If something else in the room vibrates it is because of sound waves exciting that object. The same with sub except I am using 1.25" of plywood for the cabinets. Nothing vibrates except the cone. I can excite concrete floor when I crank it. It's no the cabinet transmitting the vibrations but the actual sound waves.

I am glad they work for you.

-Robert
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