K&K The Pure Mini Acoustic Pickup3 head transducer for steel string acoustic guitar The Pure Pickup is our award winning, signature pickup for acoustic guitars. Installed on the guitar's bridge plate, the Pure Pickup is the the best choice for achieving a rich, natural guitar sound even without a preamp! The Pure Pickup'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