The Big Muff is a renowned circuit known for its versatility, with numerous variants that can significantly alter tone and feel with minor adjustments. Notably, for a fuzz unit, it is more complex than many others.

Our Manx Loaghtan is a forgotten classic still favoured by many on their pedalboards. It exemplifies the Muff circuit but enhances the EQ section, often seen as its weakest point. Instead of the usual single-knob dual filter, it features a robust Baxandall-type EQ, allowing a wide range of equalisation from crisp highs to boomy lows. You can also adjust the midrange by boosting or cutting both bands simultaneously.

The circuitry has been finely tuned to produce chunky chords, woodwind-like sustain, and low-gain overdrive tones.