Roland Promars (1979)
Promars is considered as a monophonic, two-VCO version of the Jupiter-4 polyphonic synthesizer.
- Two detunable VCOs with sine, saw, square and pulse/PWM waveforms
- Resonant VCF with dedicated ADSR envelope (with polarity switch); manual HPF
- LFO with sine, squere, up/down saw wavforms
- 3-octave (F-F) keyboard