"The modification that was done gives control voltage inputs for
1. Slide
2. CV
3. Gate
4. VCF (filter cutoff)
It also gives an additional output of the PWM waveform.
The original CV ins and outs all work also. The new CV/Gate input is better than the original (there is a lag on all the original 202s) I think most people would prefer to use external controls as the internal sequencer requires thought and time to program. However the internal sequencer affords special results with the use of accents and slides.
While the MC-202 is often compared to the TB-303, I think the sound and filters are closer to the SH-101. When the resonance is set very high the machine becomes very acid. It synchonized via din sync.
There are two wave forms Square (with PWM) and Saw. There is also a square Sub Oscillator that can be shifted one octave down, two octaves down, or down two octaves with PWM.
The MC-202 is obviously a great bass line synthesizer. The Sub can be absolutely devastating. "Watch the bass bins...." The MC-202 also excels in making acid. The combination of solid bass, acid sequencing, and filters that take on a life of their own when you krank the resonance, makes for acid bass lines or great sqeeky acid effects. The MC-202 also makes very nice strings sounds and woodwind sounds."