Poly-83 has advanced features such as more polyphony, the ability to layer 2 different "DCO" if needed and utilise the advanced Kontakt engine parameters for sound editing. The high quality filter section includes different filter types to select of, so the sound is more "full" like a real analog synth with its own filter component per voice.

There are also audio effects such as chorus and tempo-synced delay.

Unlike the original Poly-800 built-in sequencer, now there is an arpeggiator instead. The multisampled sounds have been recorded at 96kHz 24-bit resolution and downgraded to 48kHz. Post editing process and looping are done carefully on each sample individually.