My rack is spiked through carpet to concrete. Recently, to move the rack over, I put some cushioned nylon sliders under the points, w/ metal caps under the spikes so they wouldn't punch through. Haven't removed the sliders yet. Interesting - the sound is NOT different at all, as far as I can tell.

My rack is grounded via Michael Green designs mega solid steel screw-in bottom cones that are attached to 1/4" threaded rod. The cone points rest on the beautiful Isoclean medium chrome plated floor protectors.

Mark Evans

I installed some soundocity.com outriggers on the bottom of my speakers and am very happy with them. I sure they could also be integrated for equipment rack purposes as well.