Keyboard: 61 keys
Weight: 15,2 kg
Dimensions: 1080 (w) x 102 (h) x 392 (d) mm
Power supply internal with underneath 110/220 Voltage selector.
Trend price : 1000€ (up)
Synthesis: analog sub
Polyphony: 8 voices
Oscillator: 2 DCO
Crossmod: 2 modes
Multitimbric: 1 part
Filter: analog LP +HP
LFO: 3 modulators
Memory: 64 slots
Storage : tape
Midi: IN / OUT / THRU
CPU: Zilog PD7811
IC: CEM 3372
OS: EPROM d2764d
KEYBOARD 61 velocity keys. Main panel features 56 buttons, 4 knobs, a large rotary encoder for values enter; all parameters values are displayed on a special glowing bars fluorescent display.
Back panel terminal connectors:
- mono signal out
- Midi interface
- tape interface
- sustain pedalswitch input
- program change pedalswitch input.
NO factory reset procedure
Sadly there is no reliable sample sources nor free VST plugin. We will make some Ax80 sounds... soon or later.
Have some sounds or demo want to share? CONTRIBUTE :)
Scegli tra la vasta selezione di blocchi già pronti più recenti: intro a tutto schermo, caroselli immagini di bootstrap, Slider dei contenuti, galleria di immagini responsive con lightbox, parallax-scrolling, sfondi video, menu hamburger, intestazioni fisse e altro ancora.
TECH Main CPU based on 8 bits D7811G (part of Zilog Nec 7811) manages 8 voices polyphony based on subtractive synthesis.
Each voice is composed by 2 DCO oscillators (with soft or hard sync mode) + 1 sub which features a variable pulse width linked to DCO1 value. .
AX80 DCO structure
|OSCIILATOR 1||OSCILLATOR 2|
|Octave Range||16' 8' 4'||16' 8' 4' 2'|
|Waveforms||saw / pulse / mix||saw / pulse / mix|
|Sub oscillator||yes (1 octave lower)||no|
MIDI quite basic implementation: pitch bender, modulation, sustain, key velocity, program change.
filter based on 8 X CEM 3372 (acts also as EG) with Key follow function tracks the cutoff notes with variable range from 0 to 150%. VFC features 2 filter modes:
- lowpass at 4 poles
- static highpass
Tip : Unlike the others AX-VX series machines, the Ax80 does not feature the VOICE IN connector that processes signal from hardware samplers like Akai S-900.
3 delayed modulators (shapes: saw up, saw down, triangle and pulse) sharing same frequency (relative range from 0,1 to 20 Hz). Modulators destinations are:
- LFO to OSC1 pitch
- LFO to OSC2 pitch
- LFO to filter VCF cutoff.
Tip : the modulation wheel triggers the LFO using either MWHEEL OSC or MWHEEL VCF.
2 EGs both are 4-stages ADSR:
- EG1: amplitude for both DCO
- EG2: filter (only lowpass)
The keyfollower function features 99 different scaling levels.
The Ax80 SYSTEM MEMORY features:
- 32 ROM presets inside (cannot be canceled)
- 64 available RAM slots
Note that sounds can be saved ONLY using tape interface (or a computer able to record and play WAV. files).
MEMORY BATTERY REPLACEMENT: Internal RAM system uses a BR-2330 lithium battery: basic soldering skills are needed (click picture on left to zoom IN)
MAINTENANCE keyboard panel part lacks a good spacer system: after many presses underneath membrane contacts could break. Nothing too complicated to fix, that's usually the most common repair along with battery replacement
- edit interface
- no exclusive systems
(1986) 6 voices 73 keys synth also 6 oscillators. The relative rackmount version is the VX-90.
VX-600 (1988) 6 voices, 37 keys, 6 oscillators. The most rare and sought-after Akai synthesizer.