This is an early model KCM-OD from Studio Daydream. I acquired it because it wasn't producing any sound. The op-amp was faulty, so I replaced it with the same manufacturer's model number. It's a handmade construction with a lot of character, using different wires, and has been carefully made since the beginning. It gives the impression of being more specialized as a booster than a distortion, compared to the original Centaur.