Best material for an isolation platform?

Corian is a real good base.

All the porous rocks that are cut and de burred work the best sonically. Coral, volcanic, manmade.

The metamorphic/igneous rocks will ring like a bell. Granite, basite even concrete, UNLESS its fluffed (add a lot of air to the mix) it will ring.

Sedimentary rock like Caliche, are pretty quiet, when sliced.
Personally I like the way it looks in a cross section.. Almost burl like.

Regards

Thanks very interesting indeed..

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WOW, that’s cool.

Where is Master M, he’ll like that little tidbit..

Cool theaudiotweak!!!!

I forgot to add "Hot Mud" is really good to. It's drywall joint compound with a hardener added.

15-20.00 usd for 5 gallons. you can color, shape, grind and seal when your done.. Easier to work with than grout or concrete, lighter and actually less expensive.. NO it is not as strong, BUT you can add internal reinforcement or add a pre stretched fabric, pour and then release the fabric..

Acts much like reinforcing concrete. The same way they build a flyover on a freeway.. Cables are stretched to a given point, the mix is poured, and at a certain time the binders are released.. That way of making concrete LOGS is many times stronger than just a rebar structure...

Regards