the yesterday effects unit shifter is a copy of the stereo polychorus. every knob turn on the stereo polychorus is matched by unit shifter. our circuit uses the same ic and bucket brigade device (bbd) chips found in the original. four modes and four knobs rule over the sound of unit shifter. modes: filter matrix, flange, chorus, and double track. knobs: width, rate, tune/delay and feedback.

specs & demos >

shipping out late june.