Granite under wood for better isolation?

I have a similar setup with a 1" granite base. I used a 1" MDF board and sandwiched a 1/4" cork it has isolated all floor noise to zero and ever getting back to my turntable. MDF is allot cheaper and more effective.

Go down to your local home depot and pay $1.00 for a scrape piece. They will even cut it to size.

Enjoy Music!

I have tried most methods mentioned and can only tell you that the 1" heavy granite slab with 1/4" cork and 1/4" rubberized pad purchased at a home craft store sandwiched with a 1" MFD board has done a great job eliminating all floor noise. depending where you finally rest the isolation platform might farther help to place it on a triangle vibrapod/cone or ceramic DH cone setup under the MDF as to the way I have achieved sonic details/dynamics with fantastic success and results.

I can guarantee that most of your very expense isolation platforms sold by companies to our hobby uses the same composites hidden in a laminated covering and market the finish which sells for 1000s of dollars.

Enjoy music!

Suspended tables will highly benefit from this application.

Reason is for the mere fact the suspended table truly has no plinth and get great support seating on rock solid hard platforms especially when suspended underneath the table with some cones.

Non-suspended tables on the other hand would not benefit from such a application and I would recommend a MDF board platform 2" in height box with a inserted cavity bladder such as a bicycle inner tube or fill the box with play sand sealed.

Again many company have manufactured same design application isolation platforms as mentioned for our hobby and have made tremendous amount of dollars marketing and then profiting big time on the finished products.

Enjoy music!

Yes, exactly correct Granite on top then cork, rubber and MDF on bottom.

adding Vibrapod with cones underneath the MDF in a triangle would farther benefit.

Enjoy music!

Great suggestion Zargon.