Used MXR M103 Octave Blue Box Effect Pedal

Experience rich, fuzz-driven octave tones with this used MXR M103 Blue Box Octave Fuzz Pedal in great condition. This compact pedal features two knobs—Output and Blend—to control volume and the mix of fuzz and sub-octave signal. Known for its gritty, analog character and unpredictable charm, it delivers a unique, synth-like distortion that's perfect for experimental tones. Ideal for guitarists and bassists seeking a vintage, lo-fi edge to their sound. Powered by 9V battery or adapter.