A parametric EQ with 3 bands, tuned to the frequencies that are most effective for guitar and bass.

Low Band: 33Hz - 330Hz frequency range

Mid Band: 250Hz - 2.5kHz frequency range

Hi Band: 1.1kHz - 11kHz frequency range

Each band has +/-12dB of boost

Each band has Q control to adjust the width of the frequencies affected

Level knob controls overall output with more than 30dB of boost on tap

True bypass

Operates on a single 9v battery or standard 9VDC negative tip power supply