Pre-Owned 1979 M104 MXR Distortion+ "Block Logo"

The Pre-Owned 1979 M104 MXR Distortion+ "Block Logo" – Classic '70s Grit and Fuzz from a Legendary Era

Vintage MXR Pedal with Iconic Block Logo Design

This pre-owned 1979 M104 MXR Distortion+ "Block Logo" pedal delivers the unmistakable grit and growl that helped define the sound of a generation. Originally designed in the early '70s, this model became a go-to for players like Randy Rhoads and Bob Mould, thanks to its straightforward layout and expressive tonal capabilities. With its vintage block logo casing, this pedal not only sounds incredible but also looks the part on any classic-inspired pedalboard.

Authentic Analog Distortion with Organic Tone Shaping

The MXR Distortion+ is known for its intuitive two-knob design that lets you dial in anything from a mild overdrive to full-on fuzz. With the Distortion control turned down, the pedal mimics the warm breakup of an overdriven tube amp—perfect for bluesy textures and classic rock rhythms. Crank the Distortion and Output, and you’re instantly in fuzz territory, with sustain for days and a throaty midrange that cuts through a mix.

Responsive Controls for Flexible Performance Use

One of the standout features of this pedal is how it interacts with your playing dynamics and instrument volume. The Output knob lets you blend the distorted signal with your clean tone, giving you control over the texture and punch. Whether you're after a subtle boost for solos or saturated drive for riffing, the Distortion+ remains responsive and usable at any setting.

Legendary Build Quality and Road-Ready Reliability

Built during the golden age of MXR manufacturing, this 1979 unit features the rugged construction that made these pedals so popular with touring musicians. The simple, no-nonsense layout and durable enclosure ensure this pedal can handle the rigors of the stage while delivering dependable performance every time you stomp on it.

A Must-Have for Collectors and Vintage Tone Enthusiasts

This Distortion+ isn't just a functional effects unit—it's a piece of pedal history. Its classic circuit design, paired with the block logo aesthetic and analog warmth, makes it a highly collectible item for vintage gear fans and serious players alike. Whether you're chasing '70s tone or looking to expand your fuzz palette, this MXR classic is up to the task.

This pedal works nicely as intended and is in good condition, showing typical wear and tear for it's age as can be seen in photos. Date of release on this pedal is 1979 dated by CTS pot codes (1377948 & 1377930). It has a new Rayovac 9v battery installed. All other components are original and 
includes 1 rubber knob cover.

This effects pedal ships fully insured with signature required.