Used MXR M66S Classic Overdrive Effect Pedal

The used MXR M66S Classic Overdrive pedal delivers warm, smooth overdrive with classic tube amp character. In great condition, this compact stompbox features Gain, Tone, and Output controls for versatile tonal shaping. Ideal for blues, rock, and vintage-style tones, it utilizes true bypass switching to preserve your signal clarity. Built with durable metal housing, the M66S is a pedalboard-friendly choice for players seeking responsive and dynamic overdrive. Powered by a 9V battery or standard adapter.