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Re: Umm...hence the sand?

Hi MTZ,

Thank you for your question.

I created the original Big Rock sand filled platform in 1985 and was issued a patent on the design in 1993. Virtually all versions of sand filled platforms that are discussed on audio forums are variations of my design. I do like to think that my long-term experience with the design has given me a few insights.

The interface between the component and the platform itself is critical. Even though the sand may provide some damping, the choice of material and the thickness of the material used between the component and the bed of sand will have a significant effect on overall performance. I have found that using a material that either naturally rings or is highly resonant will not provide the best performance. Granite (even when damped by the sand) will still be able to be excited above the minimum threshold desired. It will also store and transmit that unwanted energy into the component.

Best Regards,

Barry Kohan

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