For sale due to equipment reorganization. This is a Subdecay Proteus V1 unit. It's a unit from before the RESONANCE knob was added, and is famous for being used by Hidekazu Hinata. This listing is for the main unit only. Power-on and operation have been confirmed. Tapping the left switch 4 times at any tempo will activate the random arpeggiator mode. During operation check, I confirmed it working from 9V to 18V, and there were no issues with its behavior. Due to it being a used item, there are minor scratches and paint chips. Please consider purchasing with the understanding that it is a used item. #bass #guitar #effector #envelope #filter #subdecay #proteus