Dunlop Manufacturing

US musical products company

wah-wah pedal manufactured by Dunlop Manufacturing, Inc

MXR is a New York–based manufacturer of effects pedals from Rochester. The company was co-founded in 1972 by Keith Barr and Terry Sherwood and incorporated as MXR Innovations, Inc. in 1974. The MXR trademark is now owned by Jim Dunlop. alt=image of early MXR sales and engineering staff at NAMM Show|thumb|NAMM Show in LA thumb|450px|MXR dyna comp, phase 45, phase 90, distortion +, carbon copy

thumb|Jimi Hendrix's Uni-Vibe