Supro 1307 Chorus and Vibrato Effects PedalThe Supro Chorus is an all analog, full stereo modulation stompbox that uses a pair of genuine MN3007 Bucket Brigade IC chips to deliver the thickest, most luscious Chorus effect possible in pedal form, all while maintaining exceptional headroom. In addition to Speed and Depth knobs, the Supro Chorus features a Time control that increases the delay time on one side of the stereo field while shortening the delay time on the other side. Further