The Ibanez Tube King is an all-tube distortion pedal that features a 12AX7 tube for a massive, yet tight sound. Need to shape your tone? The 3-band active EQ with Presence switch helps you fit right in. And the VOID control gives you a noise gate than when cranked up, can offer some slick rhythmic effects! Includes an AC adapter. • Genuine High Voltage Tube Distortion Pedal. • Actual 12AX7 Tube For Massive Yet Tight Distortion