Third generation Tri-Logic3 keeps the same neutral characteristic as the Tri-Logic1 and 2, minimizing the coloring of tone, but also has an abundant of added features and flexibility to correspond with any bass guitar. Gain control has an option between clean boost mode (Normal), with a maximum of +18db, or high gain mode (Hi Gain) with compression at +26db. The Treble control provides ±15db and can be switched between 4KHz (low) or 8KHz (high) with toggle switch. The Mid control knob provides ±10db and allows for sweeping between 250Hz to 3KHz. The Bass control provides ±15db, switchable between 40Hz (low) and 80Hz (high), and allows you to obtain accurate and flexible sound in any playing environment.