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Floor standing speaker isolation advice needed.

I have an older pair of KEF Reference Model Twos that currently sit on their brass(?) feet on the floor. The floor is tile but not solid cement underneath. I bought two .5" thick granite tiles for underneath the speakers and am wondering if I need to do anything else like put the spikes on the brass feet, add sorbothane under the granite tiles and/or under the brass feet or something else I should be considering? Things sound good on the top end but seem a bit subdued/muddy in the bass region. The KEFs are being driven by a Parasound Halo A23 and I’ve got a HSU VTF-3 MK 2 helping out the bass, mostly for movie duty.


Thanks for any advice.
asahitoro
asahitoro OP
244 posts
 
So I'm looking at the Big Fat Dots or X-Large Fat Dots on Herbie's site and am thinking skip the granite and spikes and just put 8 of these under the KEFs feet?

Thoughts?

Thanks again everyone!
sbrownnw
686 posts
 
Wouldn’t hurt to call Paul at Soundocity.com before you do anything. 
duckworp's avatar
duckworp
257 posts
 
I know you said Gaia and Townshend are out of budget, but if they ever come into budget please do trial them. I found both upgraded my speaker in the bass department to an unexpected and astounding level. In Munich Isoacoustics were demoing their Gaia in the noisy main hall on an open stand. Two sets of speakers were running next to each other, one on Gaia one not. Even in this noisy place the differences were so apparent, as they switched between them A/B fashion.

I have tried thick foam in the past, under each corner, folded over so that the speakers gently rock on the four wedges. That did something and is nearly cost-free. Worth a try.

In the meantime, definitely try the spikes if you have a set as they will probably help a little.
lowrider57's avatar
lowrider57
5,397 posts
 
You should email Herbie if you're considering trying a product. You'll get advice on the best way to isolate your speakers. 
kalali's avatar
kalali
1,977 posts
 

If you already have the spikes in place, you can consider using the Herbies with the brass fitting for the spike and the decoupler attached. I like the spring idea but finding ones with the right compliance to create a stable platform might be a little challenging.

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