Drawing from one of the most popular compression pedals of all time, the vintage Dyna Comp, the MXR Dyna Comp Reissue is missing a few key components of the original -- but also offers some great modern updates. While the Dyna Comp M-102 isn't hand-wired and doesn't feature the old CA3080 chip, the sound is so close that you can hear a unified sound over the Dyna Comp's decades. The new M-102 features an LED light, true-bypass technology, and the same output and sensitivity knobs that made the original so intuitive.