This is one of those tweaks that I've never been too sure about. The notion that a carpet puts off a static charge affecting the transmission line signal just doesn't make sense to me, but the notion that vibrations transmitted from the carpeted floor to the cables when music is playing does have some logic behind it.
My research into cable elevators found that the material choices are ceramic, wood, acrylic and various foam based products. Styles are all over the place as is the cost. I narrowed down the choices to the round type as they would fit best where my cables run. Signal Cable has a nice looking clear acrylic version on their site, but apparently they are redesigning them and do not have any available right now. Precision Audio offers ones that look like the old power line insulators, too damn ugly for me. CA Electronics has some nice looking ceramic ones, but the bright white color and more so, the cost made me keep looking. I found a company out of England that offers a wooden version and a big plus, I can color them black.
Still being somewhat skeptical I thought before I order them I would make some from Styrofoam cups approximately the same size/style as the wooden ones. Ten cups later I installed them and sat down for a critical listen to a few very familiar CD's and SACD's. I heard a very subtle improvement, but an improvement none the less. There is definitely a slight reduction in glare at the top end that I wasn't aware was there. I'm already planning a tweak or two. I think lining the cradle area with some sort of foam or rubber padding will help further isolate the cable and I'm also thinking of adding a foam or rubber pad on the bottom.
I'm interesting in knowing if anyone else here is using cable elevators and if so, which ones and what has been your experience with them?