People use distortion analyzers for the measurement of alternating current (AC) voltages and distortion. Audio distortion analyzers test equipment for their total harmonic content of sinewaves, expressing the measurement as total harmonic distortion (THD). This type of electronic test equipment is for applications such as measuring an electronic filter’s effectiveness. We sell used and refurbished distortion analyzers in excellent condition at competitive prices. Choose from automatic, fully automatic, programmable, or traditional distortion analyzers at ValueTronics.