Pickup from SBT (Soundboard Transducer) series that reproduces a full, natural, transparent tone, and can be mounted on any type of acoustic stringed instrument equipped with a flat soundboard - it is recommended for easy installation on nylon string guitars, steel string guitars, dulcimers, and similar stringed instruments. The pickup senses the micro-vibrations of a soundboard, and is a practical alternative to more expensive bridge mounted units. When paired with an impedance-matching preamp, such as Fishman’s Platinum Stage, Platinum Pro EQ or Powerjack, the full potential of the pickup can be realized (not required). Professional installation is recommended.