■KEYBOARD 61 keys (no velocity) optional pair of legs.
The main panel features 36 knobs, 84 buttons, 6 levers and a joystick for pitch bending and modulation.
■main 8 bits CPU 6502 clocked at 1MHz manages 8 voices polyphony organized on 4 voice boards with stereo mode . A synth basic Synthex patch is composed by 2 DCO oscillators + 1 white-pink noise generator.
■OSCILLATOR DCO1 and DCO2 can be ringmodualted and mixed with individual mixer and have similar characteristics:
octave range: 16' 8' 4' 2' 1'
shapes: sawtooth / pulse (variable width) / square / triangle
■ Performance the multiplexed boards feature 4 playmodes:
- double mode: is a layer of 2 sound patches
- split assigns 2 patches on a different keyboard zones
- stereo panning mode: voice boards are sequenced to left or right stereo field
- polyphonic portamento with glide option and variable speed rate
■ FILTER is a multimode resonant model based on 8 Curtis CEM 3320 chips.
The VCF works in 3 different modes with possible polarity inversion option:
- lowpass at -24 dB slope
- bandpass at -12 or 6 dB slope
- highpass at -12 dB slope
■LFO there are 2 LFO, a main one (LFO1) and a simpler one (LFO2) triggered by joystick that modulates only pitch and filter with a triangle shape. LFO1 is quite compleet:
shape: triangle /saw/ ramp / square
destinations: pitch / width / amplitude
■ENVELOPE 2 EGs:
- EG1 VCF 4 segments ADSR
- EG2 AMP 4 segments ADSR.
In addtion 2 extra functions for envelope control: hold and sustain.
■SEQUENCER 4 tracks recorder with real-time or step entry notes.
Each track transmits Midi signals, then whole sequence can be shifted in real-time for performance.
Recording function are limited to 5 buttons and 2 knobs: write, beats, delete, loop mode, ready-reset, gate EG value. SYNC internal frequency or slave-tempo mode controlled by external + trigger pulses.
■EFFECT Based on TDA1022 is a 3-modes analog chorus fixed rate and depth values.
- 40 ROM presets
- 40 RAM user slots
- 128 events per track (512 total)
Memory based on a 3.6V internal battery, created sounds can be saved only to tape interface
Old demos we did years ago, more than 20 minutes!