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Subwoofer vibration foot isolators????

I have a SVS PB13 Ultra subwoofer(piano gloss black) and the feet are rather short(roughly 1/4-1/2 inch from floor). Can anyone suggest a vibration footer to raise the sub from floor(carpet) and be able to handle my 150 pound subwoofer to eliminate unwanted vibrations of the house. I tried different placements and the vibrations decreased by leaving about 2-3feet from the walls. I would like it raised off my carpet about another 1/2 to 1 inch more...I noticed 6 threaded feet on this beast....ALSO: basement room measures 18x23. Any suggestions!!!!!!!!
bacardi

Showing 3 responses by theaudiotweak

theaudiotweak
2,801 posts
 
Bacardi,
Are you wanting better bass definition and as a result more resolute midrange? Is your system in the basement, carpet over concrete? Tom
theaudiotweak
2,801 posts
 
Bacardi,

Right now on this site is a pair of Sistrum Sp101 adjustable platforms for sale. A Sistrum Sp 1 and APCD discs would work well also. I use SP101's under each of my James EMB subs and one each under my mono pair of amps. These are not isolation devices because there is no such thing as isolation. These platforms will allow for the collection of resonace to be redirected to the higher mass of the floor. The speed of bass will be much better with more detail and punch. Now that you can really hear your sub for the first time you will be able to better match the wave launch of your mains. This match will provide you with even better intergration into the mid bass and mid range make both more clear and resolute. Any speaker cabinet itself is a passive radiator. If this radiant resonant energy is not directed to ground away from the driver and the cabinet itself... it will self perpetuate. The speaker amp will amplify unneeded excess mud held and stored on so called isolation devices. I am a dealer..Tom
theaudiotweak
2,801 posts
 
Bacardi,

You put the APCD discs on the top points those that will engage the bottom of your sub. For maximum grip and launch I elected not to use the discs on my subs, also piano black. I don't look at their bottoms. My subs bottoms that is. Tom
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