Dave. Give us one for the ages, please. The synth everyone will want 40 years from now.
Keybed: 76-note, weighted, light-force piano action keyboard (like the T8) with polyphonic aftertouch. Keys start on low A (like the T8).
Oscillators and Filters: Dual-channel 12-voice, with a fixed setup like the CS-70M and CS-80 . One 12-voice set is the Prophet 6 circuitry, the other 12-voice set is the OB-6 circuitry. No 24-voice operation, always in dual (or split) mode.
Controls: The usual. However aftertouch and other modulation controllers have the ability to modify the usual parameters but added is Pulse Width, Pulse Width Modulation Depth, and LFO Speed. These MUST have independent modulation amount control for each parameter, not just one Aftertouch Modulation Depth amount that sets a global value for all. One knob for setup is ok, but allow individual depth settings using some button select routine. Expressivity will explode from this arrangement. Also, allow velocity to affect pitch with it’s own A/D envelope (a la CS-80).
Other Items: Independent audio out for each channel and a stereo mix out, midi channel assignable to each channel. Rudimentary step sequencer. Invertible envelopes. Beautiful walnut case. $6500 retail price. No cooling fans.