Barcus-Berry Tranducer.

The Barcus-Berry Transducer is a professional, high-performance tranducer designed for mounting within or on any any flat-top acoustic (steel string) or classic (nylon string) guitar. Installation of the pickup can be easily and quickly accomplished without altering the appearance of acoustic sound or the instrument. The broad-spectrum frequency coverage, superb dynamic range, and excellent transient response of THE OUTSIDER make it an ideal pickup choice whenever accurate reproduction of true, natural sound is required for either reinforcement or direct-feed recording applications.