The Fender ACP-1 is a high quality soundhole pickup for acoustic steel string guitars, which incorporates great acoustic tone with a quiet, humbucking design. You get well defined, balanced output from its specially designed magnetic field which can accommodate even the most articulate single note lines. Whether you are plugging straight into your amp or directly into a sound reinforcement system, the tone remains truly acoustic. Each ACP-1 features a studio quality 14' cable with a hand-soldered 1/4" plug, heavy wax/epoxy potting to eliminate microphonic feedback and a beautiful laser engraved walnut pickup cover. Designed to accommodate a 3.75" (94mm) to 4.0" (100mm) soundhole.