Akai AX80 (1984)
Eight-voice programmable analog synthesizer with DCOs, three LFOs, and bar graph editing, released as Akai's first musical instrument.
Overview
The Akai AX80 is an eight-voice programmable analog synthesizer released in 1984, marking Akai's debut in the professional electronic musical instrument market. It was introduced at the Frankfurt trade show in February 1984 as part of the Akai Music Studio System, a suite of project studio gear that included the S612 sampler, MR16 drum machine, MS08 sequencer, and MG1212 multitrack recorder. The AX80 features digitally controlled oscillators and a fully analog signal path, designed for stability and ease of programming. It was positioned as a warm analog alternative to digital synths like the Yamaha DX7 during a period of declining analog synth prices.
Specifications
| Polyphony | 8 voices |
| Oscillators | 2 DCOs plus sub-oscillator per voice |
| Filter | 24 dB/octave resonant lowpass VCF; separate 12 dB/octave highpass filter |
| Keyboard | 61 keys (C to C), five octaves, velocity sensitive, unweighted, no aftertouch |
| Memory | 96 locations: 32 factory presets (editable, not overwritable), 64 user-programmable |
| MIDI | In, Out, Thru; supports note on/off, program change, pitch-bend, modulation; no SysEx |
| Dimensions | 1018 mm x 392 mm x 102 mm |
| Weight | 15.2 kg |
| Audio Output | Monaural quarter-inch jack and quarter-inch headphone jack |
| Data Storage | Cassette tape via two cassette jacks |
Design
The AX80 uses Curtis Electromusic CEM3372 integrated circuits (revisions 3160B and 3160C) for its voice architecture, with socketed chips and an analog board designed for easy removal. Oscillators are digitally controlled with analog waveshaping, providing stable tuning and soft, rounded tones. The interface centers on five fluorescent bar graph displays (VFDs) for DCO1, DCO2, VCF, LFO, and EG/VCA, paired with membrane touch-switches and a large "Control" rotary knob for parameter editing. The keyboard employs rubber membrane switches, contributing to a slightly heavy feel. The rear panel is tilted for easier access to jacks, including MIDI, sustain and program footswitch inputs, and cassette I/O. A bridge connector between membrane boards is known to develop faults over time. Filter behavior and software were adjusted across ROM versions to match voice chip revisions.
Context
The AX80 was the first of Akai's AX series analog synthesizers, followed by the 6-voice AX60 and AX73 around 1986. It was marketed as a warm, full-sounding analog synth during a time when digital synths like the Yamaha DX7 dominated the market. By 1986, interest had shifted toward sampling, and analog synths like the AX80 became less fashionable. Despite its rarity on the second-hand market—particularly in the UK—it found use with artists including Marsheaux, Spacehotel, Rodeo Jones, Mark Bell of LFO (on Björk's *Homogenic*), and Digital Emotion.
Market
The AX80 was praised for its simple, fast editing via the bar graph interface and its thick, Prophet-like sound when processed with effects, though initial impressions without effects were sometimes considered dull. Factory presets were organized into categories: Percussive Keyboard, Brass, Woodwind, Strings, Bass, Organ, and Synth, but were often seen as uninspiring. Reviewers noted the lack of oscillator sync, mono mode, keyboard split, and arpeggiator. Keyboard Magazine (Jan 1985) praised its tone colors and full sound, while Electronics & Music Maker (Dec 1984) called it extremely user-friendly but lacking a distinctive sonic character of its own.
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