vibrapods -- which component?

I tried them under a number of components, being careful to select those consistent with the weights of the equipment. Checked them a couple months later, to find the donut shaped cushions gone flat(rendering them useless). Wrote two(very civil) e-mails to the Vibrapod, "customer service" addy, asking if this was somehow normal, never to receive a reply.

I have them under my bookshelf speakers. Wonderful result. Allows most all the energy (and microdynamics) to enter the listening space. I found them much superior to blue tac, and the many other interfaces (coupling and decoupling) that I tried. I like decoupling myself.

I suspect the thing with the lowest level signal, I.e., preamp, would be the most sensitive to vibration.

I just bought a set of four Vibrapods for my VPI turntable and it seems to work great.

The music room is filled with vibrations; and the only way to stop musical vibrations is to stop the music. But mechanical vibrations are a different story, e.g., footsteps; and the components that benefit from mechanical isolation are turntables and tubes, if microphonic. Of course, you'll hear a difference if speakers are raised relative to ear level; but the effect isn't the result of isolation.