Lehle Compact Mono Volume S PedalThe Lehle Compact Mono Volume S combines robust analog circuitry with digital precision, delivering an active volume control solution that eliminates the wear and degradation of traditional mechanical components. At its core is a magnet based Hall sensor systemyour foot never touches a potentiometer. Instead, a neodymium magnet moves across a Hall sensor, with the data processed in real time by a dedicated ARM Cortex processor. The result is a smooth,