The BOSS CE-3 Chorus is an analog chorus effect pedal introduced in the early 1980s as a compact evolution of the CE-2. It produces rich modulation using bucket brigade delay circuitry and allows selection between mono and stereo operation. The pedal features controls for rate and depth to shape the chorus effect. A dedicated output mode switch enables either standard mono output or true stereo chorus when using two amplifiers. The CE-3 is known for its warm, classic modulation sound and robust metal enclosure. It was manufactured in Japan and later in Taiwan during its production run.