MXR: A Short History (Jim Dunlop)

MXR

MXR is an American effects pedal brand founded by Keith Barr and Terry Sherwood in Rochester, New York, in the early 1970s. Its early stompboxes — the Phase 90, Distortion+, Dyna Comp, and Blue Box — brought studio-quality effects to guitarists in rugged, simple enclosures and became stage and studio standards. After MXR ceased operations in the 1980s, Jim Dunlop acquired the brand, reissued the original pedals, and added modern classics such as the Carbon Copy analog delay.