Used MXR M103 Octave Blue Box Effect Pedal

Used MXR M103 Octave Blue Box Effect Pedal in Good condition. This classic analog pedal delivers gnarly fuzz and a distinctive two-octave-down signal blend for thick, synth-like tones. Featuring simple controls for Output and Blend, it offers everything from subtle octave textures to wild, glitchy chaos. True bypass ensures your signal stays pure when off. A favorite for experimental guitarists and bassists looking to explore vintage-style fuzz with gritty octave effects.