Fishman SBT Classical Guitar Soundboard Transducer Brand:FISHMAN Fishman is dedicated to helping musicians achieve the truest sound possible whenever they plug in. The SBT Series pickups will reproduce a full, natural, transparent tone and can be mounted on any type of acoustic stringed instrument equipped with a flat soundboard. The Model SBT-C is recommended for easy installation on nylon string guitars, steel string guitars, dulcimers and similar stringed instruments.