Each band offers ±15 dB of adjustment. The first six bands (100 Hz through 3.2 kHz) use peaking filters for focused cuts and boosts; the 6.4 kHz band is a shelving filter for broader treble shaping. The Level control also spans ±15 dB, so the pedal can match bypass loudness or act as a clean boost.

Common uses include balancing pickups, reshaping drive pedals placed after it, and taming feedback on electro-acoustic stages. The circuit is a buffered-bypass design in the familiar BOSS compact enclosure, with seven frequency sliders plus Level on the faceplate.