Korg Mono/Poly

The Korg Mono/Poly was loaned to me (together with the Korg PolySix) by a friend, who at the time was the keyboard player for local prog rock group Glacier. Both of these keyboards were such a step above what I had at the time (a Yamaha CS5 monophonic synth and a Yamaha SK10 Strings/Brass/Organ keyboard). The quality, warmth and power of this synth simply blew me away.

This was a real powerhouse of a lead synth and I had a great time layering the 4 oscillators and experimenting with octave and 5th gaps, as well as the effects from detuning the oscillators relative to each other. The filter was also a world away from the Yamaha CS5.

  • Loaned: 1984
  • Gigged with: Egor's Funky Jumper

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Overview Specification Resources

Information from Vintage Synth Explorer

A cool analog monophonic/polyphonic from Korg. It has 4 VCO's which can be shared in 4-voice Polyphonic mode, or linked in Unison for a versatile monophonic lead. Each VCO has its own level, tune, and waveform type control. Waveforms include triangle, sawtooth, variable pulse wave. It has a great VCF (filter) section as well as 2 envelope generators (one for the oscillators 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.

A very flexible and fun synth. Other cool tricks up its sleeve include chord memory and an effects mode in which oscillators have a variety of ways to be synced. The built-in arpeggiator and sequencer can run all 4 VCO's at a time or cycle through each voice per note! There's also portamento, CV/Gate, VCF and VCO mod inputs, white noise generator, and the pitch/mod wheels can be assigned to control LFO, pitch or the filter. Its sound quality is nice and very Korg. This synth is used by Hardfloor, Tangerine Dream, The Orb, 808 State, Juno Reactor, Megaton Matt Haines, Freddy Fresh, and the Chemical Brothers.


  • Polyphony: 4 voices
  • Oscillators: 4 VCO's: triangle / sawtooth / PWM
  • LFO: 2 LFO's w/ individual rates
  • Filter: VCF, VCF ADSR
  • VCA: ADSR Env
  • Effects: Chord Memory VCO sync / modulation
  • Memory: None
  • Keyboard: 44 keys synth action
  • Arpeg/Seq: Arpeggiator
  • Control: CV/Gate and CV Filter
  • Produced: 1981