Classic Inspiration, Modern Power.

The Motherload pays homage to two of the most iconic distortion and fuzz circuits ever made: the legendary Rat and Big Muff.

Housed in a single, compact enclosure, it combines these all-analog designs into one monster pedal that goes far beyond nostalgia—it’s the future of saturated tone!

The R (distortion) side covers everything from touch-sensitive overdrive to full-on distortion fury, with a Filter control to tame highs or cut through the mix.

The M (fuzz) side delivers harmonically rich, Muff-style fuzz with great string separation and near-infinite sustain. Its Tone knob provides classic Muff voicing, while the Voice knob lets you explore new tonal variations across Muff traditions.

Unlock the Magic with Link EQ!

Each circuit has its own EQ section, but the real magic happens when you engage the LINK EQ switch. With one press, the EQ controls are shared across both circuits, opening up a whole new world of sonic possibilities and tonal depth.

Crazy Tube Circuits Motherload Fuzz & Distortion Features

• Dual all-analog circuits inspired by the classic Rat and Muff

• Distortion side: from responsive overdrive to saturated gain, with Filter control

• Fuzz side: rich harmonics, great note clarity, and near-endless sustain, with Tone and Voice controls

• Independent EQ sections for each side

• LINK EQ function to share EQ controls across both circuits

• True-bypass switching

• Power: 9V DC

• Current draw: 35 mA

• Dimensions: 4.5" × 2.5" × 1.5"