Alesis Andromeda A6

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Andromeda A6
Andromeda a6.JPG
Alesis Andromeda A6 (side view)
Manufacturer Alesis
Dates 2000 – 2010
Price US$2,499 – 2,999
Technical specifications
Polyphony 16
Timbrality 16
Oscillator 2 VCOs per voice
1 sub-oscillator per VCO
LFO 3 dedicated LFOs and S+H
Synthesis type Analog Subtractive
Filter 2 per voice
2-pole resonant multimode - SEM-style
4-pole resonant - Moog-style
Attenuator 3 x 6-stage envelopes
Storage memory 4 x 128 patch internal memory
SRAM expansion card slot
Effects Analog distortion + digital fx unit
Keyboard 61-note semiweighted
Velocity sensitive
Left-hand control Pitch bend and modulation wheels
External control MIDI & CV/Gate

The Alesis Andromeda A6 is a 16-voice, 16-channel multitimbral analog synthesizer by Alesis which was released in 2000 and discontinued in 2010.[1] 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 analogue. 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: Late 2000 – 2010
  • Dimensions (WxHxD): 40.1" x 4.8" x 16.1" (1019 mm x 122 mm x 409 mm)


  1. ^ "Alesis Legacy Products". Alesis. Archived from the original on 13 July 2010. Retrieved July 8, 2010. 


  • "Alesis Andromeda review". Keyboard magazine (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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