The original CS9 Stereo Chorus by Ibanez was originally manufactured in Japan in the early '80s. Their vintage, analog quality lends warmth to the tone they produce and they can produce a wide array of chorus and vibrato effects. Rich, lush undulation is made by blending the delayed signal with the dry input, creating a multiple voicing effect. Sweep speed and depth control knobs dictate the quality of your sweeps, from languid waves to rapid vibrato.