Using proprietary stainless steel and ceramic bearings, the Stillpoint Ultra SS essentially takes the micro vibrations coming from the component that is sitting on it and dissipates them (top-down). It also decouples the component from the surface that the Stillpoint is sitting on. Most other component feet work in the 20hz to approximately 1kHz band. The Stillpoints work with vibrations downwards of 100 nanoseconds. These are the frequencies that harm the audio signal the most. They act as a filter on these frequencies, and the benefit is passed into the audible band.