Warlow

JPTR FX's Warlow takes the op-amp Big Muff circuit and rebuilds it for more: bigger sound, wider frequency response, more gain, more volume. The unique filter section combines classic Muff tones with Proco RAT character.

LED clipping diodes add a pronounced low end and distinctive texture that differs from standard Muff silicon clipping. The result is familiar but expanded—Big Muff DNA with JPTR's signature approach of taking things further than the original.

Sustain, Tone, and Volume controls handle the core sound, with the filter section adding RAT-style flexibility. For players who love the Muff sound but want more of everything—more gain, more bass, more aggression.