Alesis Andromeda A6

The Alesis Andromeda A6 is a 16-voice, 16-channel multitimbral analog synthesizer by Alesis, which was released in 2000 and discontinued in 2010.^[2] It combines a pure analog audio signal path with digital control technologies. The VCOs have a pitch correction function, a feature missing on older synthesizers.

Andromeda A6
Alesis Andromeda A6 (side view)
Manufacturer	Alesis
Dates	2000 – 2010
Price	US$2,499 – 2,999
Technical specifications
Polyphony	16[1]
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
Input/output
Keyboard	61-note semiweighted Velocity sensitive Aftertouch
Left-hand control	Pitch bend and modulation wheels
External control	MIDI & CV/Gate

The model number A6 is hinting at ASIC – Alesis developed an application-specific integrated circuit for the synth.^[3]

The product was designed by Axel Hartmann.^[3]

Specifications

• Polyphony: 16 voices
• Oscillators: 2 oscillators (with subs) per voice, 5 waveforms available (sine, triangle, pulse, up saw, down saw); FM and ring modulation
• 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, flanger 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)