Stillpoints Ultra 5 is a larger, more robust version of the Ultra. The Ultra 5 employs five pockets of Stillpoints technology per unit for maximum stability and vibration reduction. This is a massive improvement and provides a drastic increase in the level of isolation. One of the most sophisticated vibration control devices ever produced, the Ultra 5's inner pockets convert vibrations into energy, which is then released as heat, providing your system with consistent improvements in clarity, articulation, and soundstaging. Backgrounds become blacker, individual musical elements become more defined, and your overall musical experience becomes more enveloping. Once you hear what Ultra 5 can do for one component, you'll want them under all of your equipment - and the results will be even better.