Alesis Andromeda A6

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Andromeda A6
Alesis Andromeda A6 (side view)
Dates2000 – 2010
PriceUS$2,499 – 2,999
Technical specifications
Oscillator2 VCOs per voice
1 sub-oscillator per VCO
LFO3 dedicated LFOs and S+H
Synthesis typeAnalog Subtractive
Filter2 per voice
2-pole resonant multimode - SEM-style
4-pole resonant - Moog-style
Attenuator3 x 6-stage envelopes
Storage memory4 x 128 patch internal memory
SRAM expansion card slot
EffectsAnalog distortion + digital fx unit
Keyboard61-note semiweighted
Velocity sensitive
Left-hand controlPitch bend and modulation wheels
External controlMIDI & CV/Gate

The Alesis Andromeda A6 (A6 is an acronym: A - A, 6 - SIX, and their consonance corresponds to "ASICs" which is an abbreviation for "Application Specific integrated Circuits") is a 16-voice, 16-channel multitimbral analog synthesizer by Alesis which was released in 2000 and discontinued in 2010.[2] The Andromeda has analog oscillators and filters combined with modern digital control. It can be considered a hybrid of older and newer technologies, but its entire signal path is purely analog. The VCOs have a very practical pitch correction function, a feature missing on other old polysynths. The VCOs have FM and ring modulation and sub-oscillators. These features makes it possible to create a much wider sonic palette than usual on analog polysynths.


  • Polyphony: 16 voices
  • Oscillators: 2 oscillators (with subs) per voice, 5 waveforms available (sine, triangle, pulse, up saw, down saw)
  • Filter: 2-pole multimode resonating filter per voice, 4-pole lowpass resonating filter per voice (32 total)
  • Effects: Digital reverberation, chorus, echo, analog distortion, quad pitch-shifting, flange, and more
  • Arpeggiator: Up, Down, Up/Down
  • Sequencer: 16-step, analog style; both have MIDI sync
  • Keyboard: 61 keys (velocity and aftertouch sensitive) and a ribbon controller
  • Program Memory: 256 preset and 128 user-defined
  • Mix Memory: 128 user-defined
  • Memory Card Slot: PCMCIA-format
  • Control: MIDI (16-parts)
  • Date Produced: March 2001 – 2010
  • Dimensions (WxHxD): 40.1" x 4.8" x 16.1" (1019 mm x 122 mm x 409 mm)


  1. ^ "Alesis A6 Andromeda". Sound On Sound. April 2001. Archived from the original on 6 June 2015.
  2. ^ "Alesis Legacy Products". Alesis. Archived from the original on 13 July 2010. Retrieved July 8, 2010.


  • "Alesis Andromeda review". Keyboard (May 2001).
  • Jenkins, Mark (2009). "The analog revival". Analog Synthesizers: Understanding, Performing, Buying--From the Legacy of Moog to Software Synthesis. CRC Press. pp. 215–216. ISBN 978-1-136-12278-1. In the USA, Alesis, ... announced the Andromeda, again a 'genuine analog' synth. ... Andromeda looked like being one of the most powerful analog synthes available, at US $3000 quite an expensive proposition, but was taken up by Klaus Schulze and others, and at the time of writing is still reasonably easy to find, if not actually in active production.

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