The K&K Pure Preamp adds tone control when used with K&K Pickups. Volume, bass, mid, and treble controls in a very compact enclosure. Comes with rubber feet and an adhesive backed belt clip.
Frequency response is 10-30,000Hz. The bass control is set to roll off at 100Hz, the midrange at 1.5kHz with extra large bandwidth and the treble are set at 10kHz. Input impedance is 1 meg and the output is low ohmic. Battery life is about 180+ hours.