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SVS Subwoofer Isolation feet. Will I lose bass?

Most of what I see about subwoofer isolation has to do with minimizing rattles or bothering the neighbors.  But what about a sealed subwoofer on a concrete slab?  Would these dampeners not "dampen" the bass as well?

My setup...  Dual SVS SB16s on a concrete slab.  I don't have a rattle problem and the room is 20ft tall so I can't afford to "lose" bass because of my shakey rubbery feet.  

I've read and seen many great things about these but I have a hunch it would hurt a sealed sub on a slab more than help.

dtximages
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geoffkait's avatar
geoffkait
23,365 posts
 
The Mana from U.K. employed a great many glass shelves. The more the better so they said. Nirvana dual layer platform is a product. Hence the naming of it. But everyone knew it as Nancy. Building more than two heavy mass-on-springs layers wouldn’t work. It would be very unstable. The idea is to construct one dual layer device the right way. Sub Hertz performance. Hel-loo!
jollygreenaudiophile2's avatar
jollygreenaudiophile2
275 posts
 
Now, "Nancy" I like. Hey Bob, Meet Nancy!
dyson2004
42 posts
 
I am a newbie to this forum. Why are people arguing and fighting on here? I thought it was meant to be to help and advise each other in a kind and considerate way. Oh well.
dtximages OP
364 posts
 
@dyson2004 it's because everyone is suspicious of snake oil and people have different opinions.  The consensus here is:

the SVS feet will relieve vibration in walls and downstairs.  But on a concrete slab they probably do nothing positive for the bass.  Most of the responses here are about their performance on second floors where the sub shakes the whole house.

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