Placing a 2" thick piece of maple on top of HVAV cork sandwiches (the cork is sandwiched between rubber) works well.
Springs for homemade isolation stand
I want to suspend my granite top from my Sound Anchor rack w. some springs to create an isolation stand. I have about 100 -200 lbs of equipment on the granite top including a turntable. I was wondering if anyone can recommend a source for the springs that can support the weight & control resonance.