Synths ⇝ Alesis ⇝ Alesis QuadraSynth

The Quadrasynth was the first synthesizer produced by Alesis and is named for the synthesis engine, which allows up to four 16-bit PCM waveforms to be combined into a single sound. Although it has 64 notes of polyphony, it should be thought of as 64 "tones" of polyphony, since using multiple waveforms in a patch reduces polyphony by a corresponding amount (with 4-tone patches having 16 notes of polyphony). Its 16MB ROM could be increased another 4MB or 8MB with PCMCIA expansion Q Cards. It was also the first synthesizer to offer the ADAT digital optical interface.

Specifications

Year Released: 1993

Keyboard: 76 keys with velocity and aftertouch

Polyphony: 64 notes

Multitimbral: 16 parts

Preset Patches: 128

User Patches: 128

Preset Performances: 100

User Performances: 100

ROM: 16 MB

This keyboard is MIDI-enabled.

MIDI Connections: Standard 5-Pin MIDI in, out, and thru connections.

User Demo Videos

Rating

File Downloads

Alesis QuadraSynth Manual

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Fatar Replacement HALF Weighted B Key (TP/9S Keybeds) for Kurzweil K2000, Alesis Quadrasynth, Ensoniq SQ2, GEM WX2, Equinox 61, Oberheim OB-3 ($10.95)

Fatar Replacement HALF Weighted C Key (TP/9S Keybeds) for Kurzweil K2000, Alesis Quadrasynth, Ensoniq SQ2, GEM WX2, Equinox 61, Oberheim OB-3 ($10.95)

Fatar Replacement HALF Weighted G Key (TP/9S Keybeds) for Kurzweil K2000, Alesis Quadrasynth, Ensoniq SQ2, GEM WX2, Equinox 61, Oberheim OB-3 ($10.95)

Fatar Replacement HALF Weighted SHARP/BLACK Key (TP/9S Keybeds) for Kurzweil K2000, Alesis Quadrasynth, Ensoniq SQ2, GEM WX2, Equinox 61, Oberheim OB-3 ($7.95)

Fatar Replacement HALF Weighted D Key (TP/9S Keybeds) for Kurzweil K2000, Alesis Quadrasynth, Ensoniq SQ2, GEM WX2, Equinox 61, Oberheim OB-3 ($10.95)

Fatar Replacement HALF Weighted A Key (TP/9S Keybeds) for Kurzweil K2000, Alesis Quadrasynth, Ensoniq SQ2, GEM WX2, Equinox 61, Oberheim OB-3 ($10.95)

Fatar Replacement HALF Weighted C Key (TP/9S Keybeds) for Kurzweil K2000, Alesis Quadrasynth, Ensoniq SQ2, GEM WX2, Equinox 61, Oberheim OB-3 ($10.95)

Fatar Replacement HALF Weighted D Key (TP/9S Keybeds) for Kurzweil K2000, Alesis Quadrasynth, Ensoniq SQ2, GEM WX2, Equinox 61, Oberheim OB-3 ($10.95)

Fatar Replacement HALF Weighted F Key (TP/9S Keybeds) for Kurzweil K2000, Alesis Quadrasynth, Ensoniq SQ2, GEM WX2, Equinox 61, Oberheim OB-3 ($10.95)

Fatar Replacement HALF Weighted SHARP/BLACK Key (TP/9S Keybeds) for Kurzweil K2000, Alesis Quadrasynth, Ensoniq SQ2, GEM WX2, Equinox 61, Oberheim OB-3 ($7.95)

Fatar Replacement HALF Weighted G Key (TP/9S Keybeds) for Kurzweil K2000, Alesis Quadrasynth, Ensoniq SQ2, GEM WX2, Equinox 61, Oberheim OB-3 ($10.95)