Best material for an isolation platform?


I have an extra set of IsoAcoustics Gaia 2 isolation feet sitting around...I'm going build a platform for my integrated amp or transport. I have an oak shelf that would fit well 18x20x1.75. I could just as easily use MDF. Does the oak have any sonic drawbacks?
 Any thoughts?
larseand
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
A geophysicist friend of mine has a patent on how to reduce interfering
energy that returns from the floor and back into the strings and bow of a cello. She has a method and science for select travertine stones
to rid the cello of its wolf note double peak that has harmonic coverage anywhere from 70hz to 18khz. The tail of the wolf note is parastic in nature and with its riddance the cello speaks faster plays easier and is more open and clear..and has greater acoustic output without the interfering energy attached to every harmonic.
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
I do much the same with my endpins for cello. One polarity of the shear wave travels on the solid brass outer surface while the other polarity of that same shear wave travels thru my chosen materials loaded in the center core. The rod is tipped off with a geometry that reduces blow back of reflections off the coupled surface. This blow back is the interfering energy that returns up thru the endpin pollutes the strings and bridge and becomes part of all the recurring notes..Just like in an audio platform or rack. Careful selection of materials and geometry are key.
Not 2 fast and definitely not 2 slow.
Tom