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Subwoofer Isolation, what do you think...

I just got this big honking subwoofer, a DD-18 Velodyne. I've a ceramic tile over concrete floor. I also have a nice turntable in close proximity to the only WAF approved site for the big honker. Anyone have any feeling for if the adjustable feet that came with the DD-18 are enough or should I replace them with cones or something else? I always use the sub even with the vinyl as it adds so much depth to everything. I can't say my turntable's stand is very good, it isn't but I'm working on finding something good (and affordable!). I am concerned though with this big thing so close... maybe within four feet.
Thanks People!
sailfishben
newbee
4,093 posts
 
The problems you may experience are more likely to be with airborne vibrations. I don't think that you will benefit much from further floor isolation under your sub. Your turntable, perhaps. Generally it is best to place your turntable (and other components) in a spot in your room which has a bass null or at least a neutral zone to minimize the effect of airborne vibs.
twl
3,251 posts
 
I agree with Newbee about not isolating under your sub.
Also agree about turntable location.

If you would prefer upscale feet for your sub, then there are a number of choices. They can be of benefit in reducing unwanted vibrational effects in the sub.

Disclaimer: I work for a company which produces Audiopoints, a vibration management foot system.
c123666
871 posts
 
I had a 2" thick piece of limestone cut and then used spikes for the sub onto the stone. Tightened up the low end response; ie, cleaner sounding, not muddy any longer.
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