Used MXR M66S Classic Overdrive Effect Pedal

This used MXR M66S Classic Overdrive pedal is in good condition and delivers warm, responsive overdrive with vintage tone. Designed with classic rock and blues players in mind, it features simple controls for Output, Tone, and Gain, giving you straightforward tone shaping with rich harmonic character. Built with a durable metal chassis and compact housing, it fits easily on any pedalboard. The M66S uses standard 9V power and includes a true bypass switch for preserving your guitar’s natural tone when not in use. Whether used to boost your amp’s natural breakup or add grit to clean tones, this pedal offers reliable performance and tonal versatility. It shows some light cosmetic wear but functions perfectly and is ready to become a staple in your pedal chain.