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Alesis Micron

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(800) 771-8330

37-Key Velocity Sensitive Analog Modeling Synthesizer


Industry-leading analog-modeling sound engine in a lightweight and portable keyboard

The Micron boasts the same sound engine as the acclaimed Alesis Ion in a compact 3-octave keyboard, 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.

The Micron offers continuously variable wave shapes, plus sync and FM synthesis. 20 filter types are included, along with 2 LFOs with multiple wave shapes and sample & hold. The Micron has 8-voice polyphony with 3 oscillators per voice, and is 32-part multitimbral. In addition to a powerful modulation matrix, the Micron offers a programmable step sequencer, arpeggiator, rhythm sequencer for drum kits, and 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 drive effects, and stereo bus effects, including reverb. For assignable realtime control, the Micron offers 3 knobs, 2 modulations sliders, and a pitch wheel.


  • ApplicationsSynthesis and sound designKeyboard performanceHigh-resolution MIDI controlTempo-synched audio filtering, vocoder, and effects

  • Key Features and Benefits

  • 1) Powerful virtual-analog synth engineCompatible with Ion programsSuperb analog realismInspiring other-worldly soundsAbsolutely no "zipper" noise or aliasing

  • 2) Programmable features that sync to MIDI clockStep sequencerArpeggiatorRhythm sequencerRealtime phrase sequencer

  • 3) Assignable, high-resolution realtime control2 modulation sliders3 360-knobs operate at 32 times the resolution MIDIPitch wheel

  • 4) Powerful DSP effects4 simultaneous mono/stereo "overdrive" effectsStereo master effects, including reverb40-band vocoder

  • 5) 24-bit balanced I/O2 TRS 1/4" outputs2 TRS 1/4" inputs for processing external sounds


  • Sound EngineEight voices of industry-leading analog-modeled soundThree oscillators per voice, with continuously variable wave shapes, sync and FMTwo multimode filters per voice, with 20 classic and unique filter typesThree envelopes, two LFOs, and sample and hold per voiceTwelve-route modulation matrix, with 114 sources and 78 destinationsOne insert drive effect per voiceTwo master effects processors, with reverb and delayFull-featured 40-band vocoder

  • SequencingProgrammable pattern sequencer and arpeggiatorProgrammable drum rhythm sequencerRealtime or step recording, with controller motionLive realtime phrase capture -- one-button record and loop

  • Setups32-part multitimbral -- up to 32 programs per setupUp to 26 simultaneous patterns or drum rhythms per setupQuick splitting and layering

  • PresetsOver 500 preset programs, with space for 400 moreOver 200 preset pattern sequences and 250 preset drum rhythms, with space for hundreds moreFully compatible with Ion programs

  • Audio InputInput Connectors: 2 Balanced 1/4" TRS jacksMaximum Input Level: +5.2dBu (1.41VRMS) = -0dBFSInput Impedance: 10kohms

  • Audio OutputOutput Connectors: 2 Impedance-Balanced 1/4" TRS jacks, 1/4" TRS Headphone JackMaximum Output Level: +18dBu (6.17 VRMS) = -0dBFSOutput Impedance: 1kohms

  • PhysicalKeyboard: 37 keys (velocity, release velocity sensitive)Real-Time Controllers: 3 360-degree endless parameter knobs, 2 assignable modulation sliders, assignable backlit pitch wheelPedal Jacks: Assignable exp pedal jack, sustain pedal jackInput/Output: 24-bit stereo analog outputs and inputsMIDI Connections: MIDI In, MIDI Out, MIDI ThruDimensions (WxHxD): 22.2" x 2.75" x 8.0" / 563.88 x 69.85 x 203.20mm

Q & A

MFR Part Number
Product Category
MIDI Keyboards & Controllers
Unit of Measure
Shipping Weight
17.00 lbs.
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