Granite under your amp???

It's probably not really something you want on a rack, the granite will weigh upwards of 200+ pounds. Difference in sound = slight at best. Looks very cool. The best/cheapest way to get a nice one of these is to buy what's called a Machinist's surface plate from one of the online tool vendors. For about $50 you can have a 2-3" thick, polished slab in 12x18 or 18x24" size, slightly more for the larger one. As a bonus, it's a precision flat surface within very close tolerances, so if you need to true up some straightedges or something you are all set. ;-) I've thought of getting a couple, but they are mostly just eyecandy, and at 250lbs, heavy to move around.

-Ed

I was thinking more like 1" thick. Dimenesions would be no bigger than 17 1/2 x 19 1/2, I can't imagine this coming anywhere near 200 lbs.

A piece that size in 1 1/4" thickness weighs 36lb. I use them for shelves in a sand filled Lovan Sovereign and they work very well.

Gene

Please keep in mind that granite does not have very good tensile strength and needs to be supported by something that has the ability to carry the weight and not bend. I was carrying a piece the other day by the edge and half of it just broke off and fell. Consider what would have happened if it was being used to support an amp. Ouch!