This 1979 to 1981 built bulky keyboard got three main sound units inside:
- Monophonic Synth
with presets and controlls to edit the sound or to make new ones from scratch. Available preset sounds are:
- El Bass
- El Guitar
- Free (sets the controlls for the heart of the sound design)
The Tuba is beefy sounding. And the "free" mode with the available parameters let you use the main character of the selectedt preset wave shape and work with the nice filter, the one ADSR for the filter and/or the VCA, the LFO (here named "Osc"!) with envelope depending amount set via a mode rotary switch.
- Polyphonic Preset Synth
- Electric Piano
- Honkey Tonk
- String Section
- 8" footage
- 4" footage
- Sustain (actually release)
- Attack (with a not well chosen parameter scalling. 10% is way to long.
And 100% is even longer as needed in all music styles
(except ambience tracks)
But not as classic as an Solina
The Keyboard may be split at a fixed point at the middle F. The Strings and the poli synth then play at the lower end, the mono synth at the upper half of the keys.
The String and poli synth section may be switched to monophonic at the same time.
The keyboard got a monophonic aftertouch that can be routed to all possible combinations of these destinations:
- Mono Synth brilliance
- Mono Synth OSC (vibrato)
- Mono Synth Glide (actually it is aftertouch pitchbend upwards)
- Brass Brilliance
One can tune the poli synth's pitch and the mono synth's pitch seperatly to the fixed string's pitch.
Inside there is a top oscillator (SN 74221 Texas Instruments) with a top octave divider chip AY-1-0212 by G.I.E.
Another SN 74221 supplies a M110 mono synth oscillator chip by S.G.S to do the mono synth oscillator. And also taking care of assigning the highest pressed key to the mono synth. And it is able to give a portamento, generating the trigger for the mono synth envelope. Its output is a pulse wave at 4 selectable (done in the presets!) footages. This pulse is then shapped to sawtooth on the Tuba (16") Trombone (8") and Trumpet (4").