Used Bk Butler Tube Driver 4 Knob Effect Pedal

Used BK Butler Tube Driver 4 Knob Effect Pedal in Good condition. This classic overdrive pedal features Drive, Output, EQ, and Bias controls for precise tone shaping. Built with a real 12AX7 vacuum tube, it delivers warm, responsive tube-driven distortion trusted by legendary guitarists. Ideal for blues, rock, and fusion, the Tube Driver enhances your tone with vintage character and dynamic range. A must-have for players seeking authentic tube overdrive in a pedal format.