From JAM Pedals:
"The RED MUCK mk.2 puts on a few pounds, grows a new set of sharp teeth and is out to seduce even the most demanding Muff connoisseurs!
Inspired from the circuits of the ’71 “triangle” and the later “Red Army / Civil War” Muff, the RED MUCK mk.2 now comes with a wider gamut of saturation, compression and sustain on tap, accessible by the Boost footswitch and 2-way toggle-switch.
The Boost footswitch engages a dedicated section of the circuit, separately tuned to hit the front end of the Red Muck, while the 2-way toggle-switch selects between symmetrical (exactly like the Red Muck MKI) and asymmetrical labeled “+” clipping modes!
From lyrical Gilmour tones to massive Stoner-Fuzz-Distortion wall of sound, this is IT!"