Korg Poly-800 mkII PS-800II Analog Synthesizer w/ case power supply New internal
KORG Poly-800 mkII. The Poly-800 model was succeeded by the the Poly-800 mkII in 1985. The mkII added digital delay effects, MIDI SysEx functionality and a darker paint job. Note that the Siel DK70 is very similar to the Poly-800.