MXR is a legendary manufacturer of guitar effects pedals, known for iconic stompboxes like the Phase 90 and Dyna Comp, and currently a key brand under Dunlop Manufacturing.
MXR is a legendary name in the world of guitar effects, originally established in Rochester, New York, in 1972. Known for their rugged construction and distinct sonic character, MXR pedals helped shape the sound of modern music with classics like the Phase 90 and Dyna Comp.
Now owned and manufactured by Dunlop Manufacturing, Inc., MXR continues to produce a wide range of stompboxes, from faithful analog reissues to cutting-edge digital processors. The brand is synonymous with durability and professional-grade tone, serving musicians across all genres.
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Most MXR pedals can be powered by a standard 9-volt battery or an AC adapter such as the Dunlop ECB003. Check your specific model's manual for voltage and current requirements (e.g., 9V DC vs. 18V DC).
Dunlop Manufacturing typically warrants MXR electronics to be free from defects in materials and workmanship for a period of one year from the date of original purchase.
The MXR trademark was acquired by Jim Dunlop in 1987. Since then, Dunlop Manufacturing, Inc. has manufactured and distributed MXR products.
The serial number is usually located on a sticker inside the battery compartment or on the bottom plate of the pedal.