Released in 1981, the Korg Polysix was one of the first reasonably-priced instrument (alongside Roland’s Juno 6) retailing at around $1000. The Polysix sounds classy, big and fat and was also one of the first poly synths to feature built-in effects – chorus, phaser and ensemble.

The warm-sounding pure analog sound is powered by a 6-voice engine with one VCO per voice, a sub-oscillator, a filter section with control over the envelope amount and keyboard tracking, a flexible ADSR envelope, an LFO which could be routed to the oscillator, filter or the amplifier, a clever arpeggiator for its time, capable of memorizing and sequencing chords across the keyboard and the classic chorus, phaser or ensemble effects unit. The effect section was a key feature which made the unit popular as it became a tool to fatten up the sound even more.

The Polysix has been used by the likes of Jean Michel Jarre, Keith Emerson, Damon Albarn (Blur / Gorillaz), Tears for Fears and Eric Prydz.

Polyphony - 6 Voices

Oscillators - 1 VCO per voice (saw, PW, PWM) + 1 sub-oscillator per voice

LFO - 1 LFO assignable to VCA,VCF or VCO

Filter - Low-pass only, self-oscillates at high resonance. ADSR envelope for VCF (filter).

VCA - VCA uses filter's ADSR envelope or simple gate on-off

Effects - Chorus, phaser, ensemble

Memory - 32 patches

Keyboard - 61 keys

Arpeg/Seq - Arpeggiator (Up, Down, Up/Down, Latch; Full, 2-oct, 1-oct; rate 0.2 to 20 Hz)

Control - Chord memory, Arpeggiator sync in, CV input for filter cutoff.

Date Produced - 1981

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