best klon pedals Perhaps the most legendary (and expensive…) guitar pedal of all times, the Klon Centaur was one of the first boutique stompboxes, and proved that an overdrive could be much more than just distortion. Created by Bostonian Bill Finnegan in 1994, the pedal and its innovative circuit (which uses a use of an IC MAX1044 voltage converter and two germanium diodes) changed how overdrives interacted with a player’s rig, and how they are perceived overall.