K&K Sound Pure Mini Pickup The Pure Mini is a discreet, minimally invasive pickup for steel string acoustic guitars. This pickup features balanced, flat sound transmission and warm, woody tone without any quack and superior dynamic range over the guitar's full frequency spectrum.   Features

• Uses three very small transducer discs, which are glued to the bridge plate and routed to a standard 1/4" endpin jack
• Passive system, preamp recommended
• Professional installation highly recommended