Alesis Quadrasynth series
The Alesis QuadraSynth represents a series of synthesizers released by Alesis, spanning the years of 1993 to 2003. They incorporate a synthesis method known as "QS Composite Synthesis"[1], with a comparable feature set to the Korg ai² series of synthesizers, but instead featuring Alesis sounds and Alesis effects.
The voice count for all synthesizers listed here is 64, with up to 4 voices per note.