Like rhljazz, my experience with granite is that it sucks when it comes to digital units. I've continue to use wood shelves but I have built and acoustical shield for th fron of the unit so the energy flying around the room does not get to the unit.
Granite and digital..
I'm thinking about making a homemade isolation platform for my cd player.What I was going to make whould be 2 slabs of 2 1/2" thick pieces of granite separated by a air bladder of some kind..There a lot of different isolation shells on the market but wasn't sure if granite is good for the over all sound.Any comments.