Fast and efficient tool for verifying the polarity of loudspeakers. Works perfectly with individual drive units and with individual drivers in a multi-way boxed speaker system. Clear indication of each drivers polarity and function for fast troubleshooting. Auto power off for long lasting battery time. The measuring technique behind Phase-It. Generates a harmless electrical pulse into the connected speaker or speaker system. A build-in microphone at the top of the Phase-it.

With science based exercise and nutrition programs. We will make you feel better,. Look better and perform better! Welcome to Phase IV. We are here to help you reach the health and performance goals you have only imagined. Bob Forster was my physical therapist for my entire college and profe.