Alesis Ion

Alesis Ion Image

The Ion Analog Modeling Synthesizer is one fat-sounding digital synth! Using Alesis' proprietary DSP Analog Modeling technology with a 500 MIPS processor (500 million instructions per second), every knob and button is tweakable in real-time giving you the feel and sound of a true analog oldie.

The Ion has 8-voice polyphony with 3 oscillators per voice, and is 4-part multi-timbral. It offers continuously variable wave shapes (sine waves can morph into square waves), plus osc-sync and FM synthesis. 16 filter types are included, along with two LFOs, Sample & Hold, and an Arpeggiator-all of which sync to MIDI clock. A powerful and intuitive modulation matrix is built in, as well as a 40-band vocoder that does not use up any polyphony. External stereo audio can be processed through the filters, effects, or the vocoder.

Though not a true analog like the Andromeda A6, the Ion is capable of creating a wide variety of sounds from warm thick analog pads all the way to gritty monophonic leads and basses, as well as some funky and realistic sound effects. The Ion also simulates the best of the classic analogs such as Oberheims, Roland Jupiters, Arps, Moogs, etc, largely due to its great filters - there is hardly any aliasing even on the highest tones. The Ion also comes equipped with not one but two modulation wheels, both assignable to mods in the mod matrix (LFOs only assignable to mod wheel 1). The Ion has an amazing range of tonal possibilities.

Alesis Ion Image

The chic design, layout, and large backlit screen make editing on the Ion a dream! The Modulation Matrix is easy to understand and can route any modulation parameter to almost every component of the Ion!! All parameter knobs (excluding master volume & menu knob) are 360 degree pots allowing you to twist all the day long! A 160x160 graphic display provides instant visual feedback as a parameter is edited. Along with having 512 patch settings (all user-rewritable), the Ion has 64 multi-timbral setups. All parameters including arpeggiator settings are stored with each preset.

The ION keyboard contains 49 velocity-sensitive keys, 4 analog outputs and 2 stereo analog inputs (all balanced and using 24-bit conversion), 4 individual insert effects, a stereo master multi-FX processor, and an internal universal power supply. Expression and sustain pedal ports as well as headphone jacks are also there. For those who want a versatile synth and can't afford the A6, this is the synth for you - arguably one of the best 'virtual-analog' synths for awesome, analogue-like sounds.

The Ion inspired a "Mini-Me" version of itself in the Micron. It's the exact same synth as the Ion, except housed in a small 3-octave keyboard with only a few real-time controls. It has a few new features such as pattern and phrase sequencers and more filter types & effects - designed for the "on the go" musician in an overall more affordable package.

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Comments

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123 Visitor comments
Jack Frost
January 21, 2013 @ 3:20 am
The Alesis Ion is one of the most competent, powerful, open architecture digital synthesizers around. I think that most people are intimidated by what can be done with these things... which is why most people prefer canned sound boxes. The filters are second to none - digital synthesis has finally come of age! I'm not sure about the previous poster - it's possible that he just got a 'bad' machine... but mine's been FLAWLESS.
Jonny P
November 10, 2012 @ 2:55 pm
GREAT SOUNDING SYNTH, just full of bugs though. Seriously, you could make a decent sized list of all the bugs it has, physical and software related. The micron sadly isn't much better. The Akai Miniak is almost perfect, but has a super tiny screen, can't have everything though. Unless you get one of these for under 200 i would stay away, too much to worry about if it breaks, and parts are becoming scarce. Its a real shame they stopped making these altogether, had they tweeked out all the bugs it would probably be the best VA on the market.
Christian Toth
October 30, 2012 @ 12:32 pm
I've just purchased my first synth, the Korg MS2000R, and although I love it, I've already dissected everything I don't like about it. Upon further review, the Alesis Ion appears to have the features that I find absent on my Korg MS2000R, which are completely dedicated knobs, higher resolution, and endless potentiometers. And it sounds like a million bucks. Are there any newer synths that have these features?
Hans Brinker
October 18, 2012 @ 5:06 pm
I had one. Sold it and now am shopping for a used one. Fun to play and program.
andrew
August 18, 2012 @ 4:03 am
Morrissey's band used Ion.
 
VSE Rating

Awesome!

User Rating

Rated 3.87 (813 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 - 8 voices (4-part multitimbral)
  • Oscillators - Alesis proprietary DSP Analog Modeling: 3 oscillators per voice (Sine, Square-Pulse, Saw-Triangle).
  • Filter - 2 multi-mode filters with 16 filter types.
  • Envelopes - 3 EGs: Pitch/Mod, Filter, and the Amp have their own ADSR envelopes.
  • LFO - 2 multi-wave LFOs and 1 S&H. Ring Modulator. FM. hard&soft OSC sync.
  • Effects - 4 Individual Mono/Stereo Insert Effects and Stereo Master Multi-FX Processor (80ms slapback delay, chorus, flanger, phaser, distortion, fuzz, compression, limiter) and built-in 40-band Vocoder.
  • Keyboard - 49 keys (velocity, release velocity sensitive).
  • Memory - 512 Patches, 64 Multi-timbral Setups.
  • Arpeg/Seq - Arpeggiator: MIDI-sync-able multiple-pattern plus *random* feature.
  • Real-Time Controllers - 30 360-degree Parameter Knobs, 2 Assignable Modulation Wheels, Assignable Pitch Wheel.
  • Control - MIDI (4-part multitimbral) IN/OUT/THRU
  • Date Produced - 2003
  • Resources & Credits
  • Images from Alesis and

    Info provided by Christian and Lars Lien.

    Reviewed December 2007.

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