Used MXR M103 Octave Blue Box Effect Pedal

Add massive, synthy low-end to your rig with this used MXR M103 Octave Blue Box in good condition. It combines a gritty fuzz with a powerful two-octaves-down voice for thick riffs, lead lines, and experimental textures. Compact and road-ready, it features simple output and blend controls, a standard 1/4" in/out, and runs on a 9V battery or 9V DC adapter. A classic octave-fuzz sound with unmistakable character.