An 8-voice polyphonic analog/digital hybrid synthesizer with a 49-note keyboard and a built-in sequencer. Manufactured between 1984 and 1986.

The Poly-800 features one DCO per voice, with sawtooth and square waveshapes for building your own waveforms. Single-DCO sounds are quite thin, but the two 4-DCO oscillator banks can be layered to play separate patches for a much thicker sound, while limiting the polyphony to 4 voices. A noise generator is also available. The DCOs have their own 6-stage ADBSSR envelope generators.

For a filter, the P800 offers a single resonant low-pass VCF. It features keyboard tracking and its own EG. Unfortunately, the filter has no function for every oscillator, and won't for example be re-triggered for each note when playing legato.
A sine-only LFO is available, with controls for speed and delay. It can be used to modulate both the DCOs or the VCF. Also included is a simple chorus effect.

Furthermore, there is a a 256-event step-time sequencer capable of holding both notes and chords. P800's patch memory holds up to 64 user patches with up to 50 editable parameters.
MIDI support is included, and the P800 can even run on batteries.
The Poly-800 is noted as Korg's first international succeess and it offered heavy competition to Roland's Juno line, mostly due to its surprisingly low price.

back to Korg