The K&K Sound Definity Preamp is a basic preamp solution specially designed for the K&K Sound Definity pickup (not included), and features a phase switch, adjustable mid and treble controls (via trimpots), and a 1/4" line out. This preamp will increase the output of the Definity pickup significantly, and provides adjustments that are specifically tuned to get the best sound out of the Definity pickup.
The battery, phase switch, midrange and treble pots can be accessed by removing the snap-on cover of the preamp. The trim pots can be adjusted with a small screwdriver. The preamp turns on automatically when a cable is inserted - unplug the cable to preserve battery life when not in use.