Granite surface plate

Try a 2" thick slab of Delrin.. did wonders for my table. But not cheap.. around $1200

I agree with Albert. I've tried them on numerous occasions on many different components and they ring like hell.

They do look pretty. Wish they worked/sounded better.

If you like the look of it but want better performance I suggest you try a material like Corian, which is far more dense and damped than granite or any natural stone.

Surface plates when purchased from machine equipment suppliers are inexpensive. As other have noted, putting a heavy surface plate on the top shelf could cause a pendulum effect. You do have an option of counter balancing the pendulum effect by placing additional surface plate on the lower shelves.

How is your floor suspended?

Whether or not it works well I strongly advise against using a granite plate as an equipment stand. This explains why. From a Clients system

Good Listening

Peter