The Ultimate Protection Pure pristine power 24/7. For ultimate in power conditioning with under/over voltage stabilization that enhances performance without changing the THD so Audiophiles love it! It can deliver 240V output or (user selectable) option 220V to deliver the power your system was designed for. The Thor SmartBrain not only protects from surges, it also filters and cleans electrical frequency noise to give you unbeatable sound and video quality. Enjoy a truer AV experience with better picture quality and purer sound. Can also improve computer gaming speeds and fix internet dropouts. Inside The Brain SmartBrain has a premium filter technology called Dynamic Active Tracking. This unique filter has the best chance of "cleaning" electrical noise because it shields around 40% more frequencies when compared to other filters. It is an Active filter and can "clean" unwanted frequencies on both the upward curve and the downward curve of a sine wave (power). Most other filters only work at the crest of the wave and therefore miss a huge section of unwanted frequencies that can generate noise on sensitive electronic devices.