Used MXR M103 Octave Blue Box Effect Pedal

The used MXR M103 Octave Blue Box is a distinctive effects pedal that combines fuzz with a two-octave-down signal, delivering gritty, synth-like tones. Featuring simple controls for Output and Blend, it allows you to dial in the perfect mix of fuzz and sub-octave. This unit is in good condition, fully functional with cosmetic wear from use. Ideal for guitarists seeking a unique, vintage-inspired sound with analog circuitry and rugged, compact design.