The Alesis QuadraSynth Keyboard

and S4 Module

QuadraSynth Specifications | S4 Specifications


The QuadraSynth revolutionized the industry by introducing useful features combined with affordability. Never before could you find a synthesizer master keyboard with 76 keys, 64 voice polyphony, user-friendly interface, and high quality sounds. Digital effects, 16 Mb sample ROM, PCMCIA expansion slot, dual audio output, ADAT interface, large backlit display - just to name a few of the highlights. The S4 is the rack mount module version of the QuadraSynth, - without the keys. The first versions of the QuadraSynth (up to v. 1.07) were a little short on MIDI implementations, they couldn't transmit or recognize MIDI control messages like pan, volume or bank changes. The banks were strangely organized, and it couldn't do General MIDI. The PLUS upgrade not only fixed these problems, but added several great new features. See the Upgrade Options and the Specifications Chart for more details.

Suggested reading : QUADRAPHENIA

(an excellent article on QuadraSynth programming by Clark Salisbury) Electronic Musician Feb/95.

Download

  • Full banks of programs and mixes for your Quadra at the Sound Library
  • A free demo version of the new Windows Editor Librarian at the Software Library


    Alesis QuadraSynth ( view image )

    • Type : Sample playback synthesizer keyboard
    • Keys: 76 velocity and aftertouch sensitive, semi-weighted, synth-action
    • Polyphony : 64 voices
    • MIDI Channels : 16
    • ROM : 16MB, expandable to 24MB using PCMCIA ROM and RAM cards.
    • Sounds : 128 preset 128 user programs, 100 preset and 100 user mixes, expandable using PCMCIA cards.
    • Samples : 48kHz Linear samples
    • General MIDI : Not GM compatible
    • Effects : On board effects, based on the Alesis Q2 FX processor
    • Drums : Drum kits, based on the Alesis D4 drum module
    • Input / Output : 4 Audio Out, Phones, MIDI IN, OUT, THRU, ADAT optical digital output, 48kHz input, PCMCIA card slot
    • Controls : Pitch wheel, Mod. wheel, 4 assignable control knobs, 3 Pedal inputs
    • Sequencer No sequencer
    • Other features :
    • Average second hand price : $500-$600

    Alesis S4 ( view image )

    • Type : Sample playback synthesizer module, one rack space
    • Keys: N/A
    • Polyphony : 64 voices
    • MIDI Channels : 16
    • ROM : 16MB, expandable to 24MB using PCMCIA ROM and RAM cards.
    • Sounds : 128 preset 128 user programs, 100 preset and 100 user mixes, expandable using PCMCIA cards.
    • Samples : 48kHz Linear samples
    • General MIDI :Not GM compatible.
    • Effects : On board effects, based on the Alesis Q2 FX processor
    • Drums : Drum kits, from the alesis D4 drum module
    • Input / Output : 4 Audio Out, Phones, MIDI IN, OUT, THRU, ADAT optical digital output, 48kHz input, PCMCIA card slot
    • Controls : 4 assignable control knobs,
    • Sequencer No on-board sequencer
    • Other features :
    • Average second hand price : $350 $450