Korg Mono/Poly

Released in 1981

The Korg Mono/Poly has 4 VCO's which can either be used in a 4-voice polyphonic mode, or stacked in Unison for a fat monophonic sound. It has a great filter section based on SSM chips, as well as 2 envelope generators (one for amplitude and one for the filter). There are also 2 individual LFO's which can be used to modulate the Pulse Width, envelope and Arpeggiator independently.