First released in 1974 as one of MXR’s foundational pedals alongside the Phase 90, Distortion , and Blue Box Fuzz, the Dyna Comp Compressor is one of the most popular of all time—but it’s much more than its utilitarian name suggests. The secret weapon on countless pedalboards, this little red box is responsible for the percussive, clicky sound heard on numerous hit records. It couldn't be simpler to use—just set the amount of compression you want with the Sensitivity control and the effect volum