Used MXR M103 Octave Blue Box Effect Pedal

The used MXR M103 Octave Blue Box delivers fuzz-laden distortion with a two-octave-down signal blend for a unique, synth-like tone. Housed in its iconic blue enclosure and in great condition, this analog pedal features simple controls: Output and Blend, letting you dial in rich, gritty textures perfect for experimental rock or classic fuzz sounds. It’s powered by a 9V battery or AC adapter and compatible with guitar, bass, or other instruments for versatile creative use.