Isla Electronics / Software synthesizer
ASYX
A software recreation of the
Andromeda A6
The architecture and sounds of the original instrument, recreated in software. Use it in your DAW or as a standalone instrument.
Windows 11+ (64-bit)
macOS Big Sur+ (Intel / Apple Silicon)
Systems & formats
Perpetual licence. All future versions included.
Watch / Listen
Hear ASYX.
The original instrument
Epic Inspiration
The Alesis Andromeda A6 combined sixteen analogue voices, dual filters and extensive modulation in one instrument. Today, working examples are becoming harder to find, and rising second-hand prices put ownership beyond the reach of many musicians.
Maintaining them is also becoming increasingly difficult. The Andromeda relies on custom oscillator and filter chips—ASICs (Application Specific Integrated Circuits)—and many units are now out of service because replacement parts cannot be sourced.
ASYX was developed to make this instrument accessible in software. Working directly with an original A6, we’ve measured, compared and refined its behaviour, while retaining compatibility with original patches. For existing owners, it offers another way to use their sounds. For everyone else, it provides access without the cost and maintenance of ageing hardware.
The engine
Inside ASYX
A detailed signal path, with the controls to explore it. Start simply, then go as deep as the sound requires.
01 / Oscillators
ASYX models the behaviour of the A6’s custom oscillator ASICs, whose analogue design drew on the Moog 921B. Two oscillators per voice provide simultaneous waveforms, pulse-width control, sub-oscillators, hard and soft sync, and frequency modulation. Noise and ring modulation feed the pre-filter mixer.
02 / Dual filters
ASYX models the A6’s filter ASICs: an Oberheim SEM-derived 12 dB/octave multimode filter and a Moog 904A-derived 24 dB/octave low-pass filter. Low-pass, high-pass, band-pass and notch responses, with series or parallel routing and separate pre- and post-filter mixing.
03 / LFO
Three LFOs with six waveforms and individual rate, amplitude, offset, start phase, duty cycle and polarity controls. Delay, trigger and clock-sync settings are available for each LFO.
04 / Multi-stage Envelopes
Three seven-stage envelopes: delay, attack, two decays, sustain and two releases. Nine selectable curves for each attack, decay and release stage, with adjustable intermediate levels. Additional controls cover looping, trigger and retrigger sources, velocity response, key tracking and smoothing.
05 / Deep Modulation
Modulation routing with independent source, destination, amount, offset and enable controls. Sources include envelopes, LFOs, sample & hold, the tracking generator, MIDI and performance controllers; destinations include envelope stage times as well as oscillator, filter and effects parameters.
06 / Sequencer / Arpeggiator
A 16-step sequencer with per-step note, velocity, gate and rest controls, alongside an arpeggiator with its own grid and setup controls. Sequence and arpeggiator settings are stored with each program.
07 / Effects
29 digital effect algorithms, including chorus, delay, reverb and combined configurations. Algorithm parameters and effects settings are stored with each program.
08 / Analogue character
Independent variation depths for oscillator tuning, tracking and pulse width, filter cutoff and resonance, envelope timing, voice levels, shared drift and oscillator drift. The master Analogue control scales the combined variation.
09 / Mix mode
Up to 16 parts per plugin instance for multi-timbral operation, keyboard splits and layered stacks. Each part has its own program, MIDI channel, key range, level and output route.
The patch library
Comprehensive Patch Management
More than 1,200 included programs, with original factory sounds and artist banks. Search by name, author or bank, filter by category, and keep favourites close at hand.
Original patches / A6 Link
Your sounds.
Across both instruments.
With MIDI connected in both directions, the A6’s knobs and buttons can control ASYX. Enable live parameter sending to work the other way: changes made in ASYX are sent to the hardware. This works with compatible program parameters, so you can edit from either interface.
Import original A6 SysEx programs and banks into the library, or send the current program—including unsaved edits—back to a chosen hardware slot. You can also transfer a bank. Patch and bank transfers are separate from live editing and ask for confirmation before overwriting hardware programs.
Keep large banks in ASYX, and prepare a bank in the A6’s 128-program format when you need a hardware transfer. ASYX-only features such as polyphonic aftertouch remain software features.
Compatibility
Systems & formats
Windows
Windows 11 or later
64-bit
VST3 / Standalone
macOS
macOS Big Sur or later
Intel / Apple Silicon
AU / VST3 / Standalone
Linux
Coming soon
For your studio
Get ASYX.
Perpetual licence. All future versions included.
Receive an email when ASYX is released.
ASYX is independently developed by Isla Electronics and is not affiliated with, endorsed by or sponsored by Alesis, Moog Music, inMusic Brands, Oberheim, Sequential or Focusrite. All third-party trademarks and product names belong to their respective owners. References to the Alesis Andromeda A6, Moog 921B and 904A, and Oberheim SEM identify the original instruments and circuit designs, describe their historical lineage, or explain compatibility.