The Lehle P-ISO is a practical isolation transformer that should not be missing in any guitar case as a problem solver for recording studio, stage and rehearsal room. By galvanically isolating the connected devices, the P-ISO helps to prevent hum caused by ground loops. The Lehle Transformer HZ at the heart of the analogue circuit, which is optimally tailored to audio applications, ensures unadulterated sound quality. Due to the purely passive circuitry, no batteries or power supplies are required to operate Lehle's P-ISO, while the TRS jacks are suitable for both balanced and unbalanced signals.