The DM4 is the first pedal to deliver a wide range of legendary distortion/overdrive-style effects in a programmable, road-ready stompbox. Includes: digital modeling of 16 vintage distortion effects (including models based on* Tube Driver, Rat, Tube Screamer, Big Muff, Fuzz Face, etc.), 4 programmable presets, bass/mid/treble controls for perfect grind or growl, true bypass switching, Expression Pedal input, mono in and out.