The Mandolin Twin is a dual-head retrofit mandolin transducer. It reproduces the original mandolin tone with very natural tone quality and it is highly feedback resistant. It is used by high end Mandolin builders like Clark Mandolins and by many professional players. AVAILABLE MODELS The Mandolin Twin Internal is a fully internal pickup system. Both the tranducers and the endpin-jack are mounted inside the mandolin. The transducers are attached with double-sided adhesive tape, providing a robust installation with minimum sound interference. Installation of this system should be done by an experienced luthier or mandolin tech. If you are looking for a system that is easy to install by yourself please check out our Mandolin Twin Fusion system. The Mandolin Twin Fusion does not require any permanent alteration to your instrument. The pickups attach to the inside of the mandolin with double-sided adhesive tape, while the carpenter jack remains on the outside of the instrument. It provides the exact same sound quality as the Mandolin Twin Internal because the pickups are mounted in the same positions. The Mandolin Twin Fusion can easily be installed by the musician. A comprehensive step-by-step installation manual descibes the process in detail. Special installation tools are provided.