Sorbathane under granite slabs for speaker bases?


I’m getting two 12"x12" granite slabs to use as bases under my KEF Reference Model 2s via spikes. They will be sitting on a 5" high hollow tile shelf. Would using thin (.25") 70 duro sorbathane under the slabs help in isolating the speakers or will it possibly negatively impact the sound?

Thanks for any input.
asahitoro

Showing 1 response by williewonka

asahitoro - sorbothane is a tricky material to use. One might think more is better, but my own experience leads me to believe less provides greater benefit.

I use it throughout my system between the feet and the components.

As an example -  My turntable was sounding great with 1/10" sorbothane on the feet, so I thought I'd try two pieces of 1/8". The result was terrible - the dynamics dropped off and the bass became bloated.

I'd opt for 1/10" sorbothane in your case and even then - I'd put a small 2x2 inch piece at the corners and one piece in the middle

I also spoke to an HVAC installer that uses it to curb vibrations and he said using strategically placed smaller pieces is often more effective.

Regards