Electro Harmonix - Green Russian Big Muff Type_Vibrato Threshold adjusts how much level

Threshold adjusts how much level is required to open the noise gate and allow a signal to pass thru

The Sweep knob controls what frequencies will be affected

Included 9 Volt DC 500mA negative center power supply

treble control and signal path are optimized for bass guitar and guitarists wanting extended low frequency response

Electro Harmonix - Green Russian Big Muff Type_Vibrato Threshold adjusts how much levelBack by overwhelming demand in a mini package! The cult classic Green Russian Big Muff first shook the ground in the mid 1990s. Since then it has been heralded by guitarists and bassists for its devastating low end and unique sludge and sizzle. The Green Russian Big Muff creates a huge tone that is all its own, but is undeniably Big Muff. A faithful reissue of the legendary Green Russian Big Muff from the mid 1990s Revered by guitarists and bassists