The Custom Muff EVO is the upgraded and refined evolution of our original Custom Muff.

We’ve added a Class A always-on buffer with high input impedance, designed to preserve every nuance of your tone, enhancing definition and adding space between notes. It also effectively blocks radio interference.

Built on the foundation of the classic silicon Big Muff, this version is reimagined to deliver midrange-rich tones without muddy low-end.

A modern take on a legend, it lets your guitar cut through the mix in any context—live, in the studio, or at rehearsal. Its powerful rock character pairs perfectly with both humbuckers and single coils.

With devastating gain and high-definition clarity, the Custom Muff EVO shines in solos with a rich, focused attack, while in rhythm it creates massive sonic walls. The Class A buffer pushes all these qualities to the next level.