The UltraPure Western is an active system for steel string guitar. It comprises a four-head bridge plate pickup, an onboard preamp with soundhole access, an endpin jack, and a Velcro mounted 9-volt battery holder. The pickup is based on our time-tested Pure Western, which excels at amplifying the natural tone of your guitar. The UltraPure preamp offers precise 3 band EQ as well as a gain control to finetune bass, mid, treble and gain.