K&K Pure 12-StringThe Pure 12 String is our signature pickup for 12 string acoustic guitars. The Pure 12 String is a 3 head, bridge plate transducer. Bridge plate transducers are the optimal choice for achieving a rich, natural guitar sound. The Pure's position on the bridge plate provides the perfect balance of sound, picking up all the strings without sounding harsh or percussive and "listening" to the sound board to amplify the unique characteristics of your guitar.