Maxon CS550 Vintage Series Stereo Chorus The CS550 offers an entire range of classic and unique chorusing effects. Rate, Depth and Delay Time controls can easily conjure every texture from subtle to severe. True Stereo outputs allow for mono, stereo, or inverted mono signal routing, while a rear-mounted Mix control blends dry and effect signals to further increase tonal options. The CS550 uses the Panasonic MN3207 BBD IC chip for the ultimate analog tone. Features 4 PDT TBS True Bypass Switching.