Used MXR M103 Octave Blue Box Effect Pedal

Add gritty, vintage-style octave fuzz to your rig with this used MXR M103 Octave Blue Box in good condition. This compact analog pedal blends a searing fuzz with a synthy octave-down for thick, glitchy leads and heavy riffs. Features simple Level and Blend controls for dialing in everything from subtle low-end reinforcement to full-on sub-octave mayhem. Standard 1/4" input/output and 9V DC power for easy integration on any pedalboard.