Flynntom; I am in the midst of constructing stands as well. My neighbor is a master tile setter, I asked him what was the densest of materials he has worked with - granite. I have taken two pieces of 18'x18' travertine appliyed a polymer between the two for a stand for my TT. I am awaiting isolation points from www.supercellaudio.com for leveling. For my Amp I am going to try 2 pieces of granite and sandwich the same material that extremephono uses for its TT mat. Good luck
