MXR M-104 Distortion Plus Effects Pedal

Few stompboxes have earned their place in guitar history like the MXR M-104 Distortion Plus. A gritty little powerhouse with roots stretching back to the golden age of rock, this pedal has been a mainstay on pedalboards since the 1970s, and for good reason. It delivers pure, unfiltered distortion with that unmistakable edge—perfect for players who want their sound to cut through the mix without losing the warmth and nuance of their playing.

The M-104 is all about simplicity and sonic power. With just two controls—Output and Distortion—you can dial in everything from subtle tube-like grit to searing, saturated fuzz. Its raw, analogue circuitry, driven by a single op-amp and classic germanium diode clipping, gives it that unmistakable vintage voice that fans of Randy Rhoads and other hard-hitting players have adored for decades.

This pedal doesn’t just sound iconic—it’s built like a tank. The compact, heavy-duty chassis is ready for life on the road, in the studio, or wherever your playing takes you. And with true bypass switching, your core tone stays untouched when the effect is disengaged.

At Musicmaker, we've seen countless distortion pedals come and go—but few offer the stripped-back magic and raw tone of the MXR Distortion Plus. It's distortion in its purest form—no frills, just firepower.

Features

• Classic Distortion Circuit: Features vintage-style germanium diode clipping for warm, organic saturation.

• Two-Knob Simplicity: Easily control overall output and gain with Output and Distortion knobs.

• Versatile Tones: From subtle overdrive to raging fuzz, it adapts to blues, classic rock, metal, and beyond.

• True Bypass: Preserves your clean tone when disengaged—no unwanted colouration.

• Rugged Build: Compact and road-ready with a durable metal enclosure.

• Flexible Power: Runs on a 9V battery or optional external power supply.