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.

Lookup Alesis Micron 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.

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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
August 9, 2012 @ 1:27 am
Rich, I saw one a few days back, available form Ebay (Australia) for $450, no body had bid on it!

I bought one on Ebay (Australia) a fews months back for $500 and I think it's an excellent buy, great for 90's retro Trance/Tech sounds!

Buy it!


July 11, 2012 @ 1:50 am
I'm interested in buying one. But I can't seem to find anyone online that sells these. I live in Oz but I've also searched international sites. Are they still available?
June 30, 2012 @ 1:32 am
With this thing you can program almost ANY analog sound you have ever heard. In three days you can learn its logic, and navigate very fast into menus. Very well designed! I have a Nord synth too, and this little has the same sound and feel. Once you have programed a patch, you feel very happy with the knobs, they work super fine! When you create a setup, the interface is very logic, and is very easy to have a monster patch with 4 sounds at the same time. For the price, size and weight and, SOUND! you will be LOVE this thing as much as I do. Under rated synth even, is well rated!!! wonderful!
June 30, 2012 @ 1:21 am
First, I was scary about its interface. Reading the manual, this "abstract" synth became the best instrument ever! It has all the parameters you need and more. I only found two things i didn´t like: the tempo is a "master" tempo. It affects all the setups, rhythms, LFOs, etc. I would like it has different rate per program! Second issue; when you create a multi-timbral setup you can´t turn the local keyboard off per part, so you have to create a kind of splited sound between the local keyboard and an external controller. Otherwise the Micron will sound "layered". Love my new synth anyway!!!
Bare Beats
June 28, 2012 @ 8:39 am
Its an amazing machine !! It was my first analogue sythn and its added so much more depth to my compositions the analogue sound I ad been craving. The programming is easy once you have learned how to do it and how to do it in a way that suits you. Seriously nice machine for beginners, also at a reasonable price. I think people need to actually hear it first though like all sythns / instruments its all about taste of the individual.

Here's something I made using the Micron
VSE Rating


User Rating

Rated 4.21 (716 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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