Alesis QuadraSynth

Alesis Quadrasynth Image

The QuadraSynth was introduced in 1993 by Alesis, and it was their first major synthesizer. It's a 64-voice, 76-key digital synthesizer that also came in a rack-mountable version: the S4 Sound Module. It had a whopping 16 MB of sample ROM, and was the first synth to offer the ADAT Optical Digital interface. It also featured the same multi-effects processor as the QuadraVerb 2, drum kits based on the D4 drum module, 4 assignable control knobs, one PCMCIA card slot, 48kHz clock input, and 4 audio outputs.

The QuadraSynth is undoubtedly a powerful and flexible synthesizer capable of creating rich sounds - both acoustic and electronic. It uses digital additive/subtractive sample playback synthesis to create high quality stereo grand pianos, organs, strings, drums/percussion, brass, woodwinds, new and classic synth textures, and more.

Released in 1995/1996 came the new and improved QuadraSynth Plus synthesizer. The QuadraSynth Plus has more ROM (24MB expandable to 32), many more program patches (640) and mixes (500). The General MIDI library has been added, as well as an 8MB stereo Grand Piano sample (also found in the stream-lined QS7, QS8, QS6.1, QS7.1, QS8.1 and QSR models), and a PCMCIA expansion slot. For an all around versatile modern synthesizer that isn't focused just on dance or trance, be sure to consider the QuadraSynths.

Lookup Alesis QuadraSynth Prices

The link above will take you to an eBay search for this synth to see active listings with more images, specs and information. If you don't find it there, try looking in our forum marketplace. Our marketplace gets thousands of visits every week so make sure to check back often if you want to buy or sell a synth.

Related forum topics

Comments

Are you looking to buy or sell a Alesis QuadraSynth? Post an ad in Gear For Sale or a request in Gear Wanted. For spare parts and repair services check out Gear Services & Other Goods. Our forums also has a Buyer’s Guide section where you can ask for advice on buying synthesizers.

32 Visitor comments
Rick Tofte
January 4, 2009 @ 7:58 pm
I have had My QS+ Piano for 10 years.
With a good amplifier and speakers, close to a real piano sound.
I have a good set of PC speaks and put them on top and it is neat.
You can get lost in the library of over 1000s of sounds programed.
Put another 8 banks of 128 programed sounds on a PCMCIA card.
Making your own is possible, but tedious without software developed for it. The editing/library software for it is available.
I would put the value of a nice QS+ at $400
DavidEW
October 5, 2008 @ 4:10 am
Grabbed a mint never used one still in the box for $140 on eBay. If you find one in great shape for less than $300 and don't buy it you're an idiot. Bang for the buck can't be beat. Even to just have it around to screw with it's worth it as a scratchpad. Sounds still work today.
 
VSE Rating

It’s Good

User Rating

Rated 3.19 (209 Votes)

  • Check Price
  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - 64 voices
  • Oscillators - 48kHz Linear samples
    QS: 16MB, expandable to 24MB using PCMCIA ROM and RAM cards
    QS Plus: 24MB, expandable to 32MB using PCMCIA ROM and RAM cards
  • Multitimbral - 16 parts
  • Effects - 4 On-board effects, based on the Alesis QuadraVerb 2 FX processor
  • Arpeg/Seq - None
  • Keyboard - 76 velocity and aftertouch sensitive, semi-weighted, synth-action
  • Memory - QS: 128 preset 128 user programs, 100 preset, 100 user mixes
    QS Plus: 512 preset 128 user programs, 400 preset, 100 user mixes
  • Control - MIDI IN/OUT/THRU (16-channels)
  • Date Produced - 1993 (QuadraSynth)
    1995 (QuadraSynth Plus)
  • Resources & Credits
  • Images from

Errors or Corrections? Send them here.