The Korg Mono/Poly is a four-voice monophonic synthesizer with optional 4-voice polyphony, released in 1981. Its superfast envelopes made it perfect for hard, percussive sounds, but its extensive modulation possibilities enabled it to go way further than just snappy drum-sounds. Besides envelopes and LFOs, it featured PWM-, Sync- and Cross-modulation, which were still very new for synthesizers outside the modular-realm at the time. The Mono/Poly was still lacking an internal memory tho, so Korg delivered it with blank layout-papers, for writing down the respective parameters settings of a “user-preset”. It was released at the same time as the Polysix and, with a price of US$995, it was quite the affordable alternative to the polyphonic synths of the early 80’s. It was used by Depeche Mode’s Vince Clarke as well as MGMT.