Granite Bases for Vandersteen speakers

Thanks jaker the bases are 3 3/4" granite slabs are 1 1/4" thick the base is three layers I have them fabricated and I install it through 
Audio Connection in Varona NJ

if we are talking about mine my table sits on my version of a Ginkgo platform the floors in my place are bounce 

Thanks didn't think about until I heard them on the 7s asked Richard if I could do it to the quatros wouldn't be able to attached to the speaker but could sit them on top

So the speakers are not spiked in to the granite there sit in floor protectors and there is a layer of 1/10th of an inch sorbothane between it and the granite if you put something springs between the speaker and the granite it would be like trying to throw a ball from centerfield to home plate  while standing on a trampoline it doesn't work
Tomic601 i do most of the 7's granite base installs for John there is thin soft layer of material on top of the 7's base and are bolted to the speaker I'm getting about 85 -90 % of the benefit  you will definitely hear 100% the same benefits that I got
I talked to Richard before adding the bases