Musitronics, the maker of the Mu-Tron III and other funkifiable effects that became a mainstay of ‘70s electric guitar tone, has slammed the German gear giant Behringer, accusing it of copying its ...

If there’s one effect pedal that can give you that instant funk-bass sound, it’s unquestionably the envelope filter. The first, and still widely considered the best, is the Musitronics Mu-Tron III.