The K&K Sound Pure Preamp is a belt-clip style preamp/eq designed for guitars and other instruments that have passive piezo or magnetic pickups. This time-proven external preamp/eq features +/-20 dB bass, mid, and treble controls plus an internal gain trimmer. This belt-clip preamp has been specifically designed for the frequencies of the acoustic guitar but it is also great for many other instruments.
The K&K Pure Preamp features a special super-wide-band midrange control, which is absolutely great in combination with the Pure pickups. Its simple and noiseless circuit provides unsurpassed clarity and power and the internal gain trimmer allows you to dial in the precise amplification factor needed for your instrument. The snap-on cover can be easily removed without a screwdriver for access to the internal gain trim pot.
Frequency response is 10-30000Hz. The bass control is set to roll of 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.