Tri-Tone is a 3 channel acoustic preamp with one designated mic channel and 2 transducer/pickup channels. The mic channel is designed for electret condenser internal guitar mics. It supplies the necessary power to the mic. Channel 1 and 2 are identical and optimized for piezo based acoustic tranducers or other pickups like a magnetic soundhole type. Thanks to the adjustable gain controls on each channel many different brand pickups can be used. A typical setup is I.E. comprised of 2 pickup systems (like the K&K Pure Western bridgeplate system and the K&K undersaddle pickup FanTaStick) and the internal Trinity guitar microphone. This preamp offers great flexibility with it's in- and output options and the individual phase switches. It features XLR and line mix outputs for live performance and individual line outputs for a recording setup.