- Faithfully modeled after the legendary circuit Op-Amp Big Muff Pi from the late 70's with some practical improvements, including a compact die-cast housing and True Bypass
- Controls: Volume - Tone - Sustain
- Switch: Tone On / Off
- LED: Effect On
- Footswitch: Effect Bypass
- Input: 6.3 mm jack
- Output: 6.3 mm jack
- Power supply connection (coaxial connection 5.5 x 2.1 mm - negative pole inside)
- Power consumption: 5 mA
- Power supply with 9 V battery or 9 V DC power supply (not included, suitable power supply available under Art.409939)
- True bypass
- Dimensions (W x D x H): 70 x 114 x 53 mm