Used MXR M103 Octave Blue Box Effect Pedal

Used and in good condition, this MXR M103 Octave Blue Box Effect Pedal delivers iconic fuzz and a unique two-octave-down tone that’s perfect for creating heavy, synth-like textures. Featuring simple controls for Output and Blend, the Blue Box allows players to dial in everything from subtle octave undertones to fully saturated, glitchy fuzz madness. Housed in the classic MXR blue chassis and built with rugged durability, this pedal is ideal for guitarists and bassists looking for vintage-inspired analog tone. Runs on a 9V battery or standard 9V power supply (not included), and its compact size makes it easy to fit into any pedalboard setup. Add some wild, unpredictable character to your sound with this classic stompbox staple.