Alesis Micron

Alesis Micron Image

The Micron is like an Ion packed into a compact 3-octave keyboard for the "on-the-go" musician. The Micron boasts the same analog modeling sound engine as the acclaimed Alesis Ion, offering breakthrough analog realism, high-resolution control, and tremendous value. The Micron is compatible with Ion programs and holds over 1,000 programs and multitimbral setups. It's therefor best used as a preset type synthesizer - either download your own Ion patches or others into the Micron and take them on the go. Sure the Ion is a hands-on synth programmer's feast, but the Micron gives you access to the same power as the Ion in a compact synth ideal for gigging, practicing, composing and just good old fashion playing around with!

Most obviously, the Micron has done away with just about all the real-time controllers found on the Ion, offering just three 360-degree endless parameter knobs, two assignable modulation sliders and one assignable backlit pitch wheel. Slim pickin's but enough for live performances (you only have two hands!) or quick tweaks. Sure you can delve deeper into patch editing and even the extensive twelve-route modulation matrix (with 114 sources and 78 destinations) but that's tedious with so few controls.

Despite its rather simple looking design, the Micron does house a beast inside - full of programmable functions! Just like the Ion, the Micron offers continuously variable wave shapes, plus osc-sync and FM synthesis. The Micron has 8-voice polyphony with three oscillators per voice, and is up to 8-part multitimbral. There are two multimode filters with 20 filter types (upgraded from 16 in the Ion), three envelope generators and two LFOs with multiple wave shapes and sample & hold. In addition to its powerful modulation matrix, the Micron offers a programmable step sequencer, an arpeggiator, a rhythm sequencer for drum kits, and a dynamic realtime phrase sequencer - all of which sync to MIDI clock. Effects include a 40 band vocoder that does not use up any polyphony, 4 insert effects, and stereo master effects. Stereo inputs let you process external audio through its effects, filters and vocoder - just as you can with the Ion.

So, if twiddling knobs all day is not your thing, but the sounds that come from such efforts are what you are looking for then the Micron may be the synth for you! Instant access to thousands of incredibly realistic analog synth sounds with all the power and programmability of the Ion. The Micron offers all that and more but for less money because of its minimalist design/interface.

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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.

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Are you looking to buy or sell a Alesis Micron? 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.

114 Visitor comments
July 15, 2013 @ 2:44 pm
This is easily the strongest VA i've ever seen. Absolutely unbelievable. I have found a way to create almost every sound i've ever wanted from any song in the 80's for my band (most I reprogram on other bigger synths or do multisamples of this guy!) Just incredible. Admittedly, you have to work for it, but... .wow... If Alesis put this into a 5octave knob laden board, it'd EASILY sell for 2K... People dumping them now for 200 bucks really just have no idea... My only gripe is that I Dont know how to rack it!! And that's my problem!
July 13, 2013 @ 2:03 pm
turned mine into a rack unit after keybed was smashed to bits!. custom look with no keys! really looks cool cut down and racked.
Sr. S
April 17, 2013 @ 6:26 pm
This one is quite easy to program.
After a while you'll learn to overcome the limited number of controllers available - actually, you'll probably learn that less is more! Just assign the controls you find most relevant for a given patch and work from there. It's all abou creating patches on end.
The programming matrix is very intuitive. I use this synth a lot. It's the one I go to whenever I'm looking for a given sound on the fly. You can get almost anywhere in the analog soundscape with it.
The keyboard is a bit fragile but apart from that it's very responsive.
March 21, 2013 @ 5:00 pm
@johnny, Go ahead and reset man( i hope you have already looking at that date) you will not wipe OS...
March 21, 2013 @ 4:58 pm
Hands Down on of the greatest and most powerful VA synths out there, The glitchy ION cannot compare and has less than half the features of a micron. Sounds are amazingly close to the real classics , with no wierd sonic footprint that the ion has. MUCH MUCH more stable(never crashed or hung since owning new.) Any one who uses the word thin or says [beep] ty for techno or whatever genre has not owned one. You Can Do ANYTHING on this synth , and programming is a breeze even with three knobs. IF IONS sell for $600, These are easily worth $800.00. Never sell and definetly NOT a Beginners synth.AMAZING
VSE Rating


User Rating

Rated 4.21 (717 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 (up to 8 multitimbral parts)
  • Oscillators - Alesis proprietary DSP Analog Modeling: Three oscillators per voice, with continuously variable wave shapes (Sine, Square-Pulse, Saw-Triangle), sync and FM
  • Filter - 2 multi-mode filters with 20 classic and unique 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 - One insert drive effect per voice, Two master effects processors, with reverb and delay. Built-in 40-band Vocoder.
  • Keyboard - 37 keys (velocity, release velocity sensitive).
  • Memory - 1,000 Programs (500 preset programs, with space for 400 more) fully compatible with Ion programs.
    Over 200 preset pattern sequences and 250 preset drum rhythms, with space for hundreds more.
  • Arpeg/Seq - Arpeggiator: MIDI-sync-able multiple-pattern plus *random* feature.
    Sequencers: Programmable step pattern sequencer; Dynamic real-time phrase sequencer; Drum Rhythm Sequencer.
  • Real-Time Controllers - 3 360-degree endless parameter knobs, 2 assignable modulation sliders, assignable backlit pitch wheel.
  • Control - MIDI (4-part multitimbral) IN/OUT/THRU
  • Date Produced - 2004
  • Resources & Credits
  • Images from Alesis.

    Additional info provided by Adam Lundberg.

    Reviewed December 2007.

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