

It shares characteristics of both the MS2 and PRD circuits and is available for the lowpass and highpass filters The SMP circuit is a custom design not based on any particular hardware. It is modeled on the filters used in a famous semi-modular Japanese monosynth and is available for the lowpass and highpass filters. The MS2 circuit option uses a Sallen-Key design and soft clipping to limit resonance. This is modeled on the filters used in a somewhat rare British monosynth, and is available for all filter types.

"The OSR circuit option is a state-variable type with resonance limited by a unique hard-clipping diode.

I'm sure someone on here can figure these out! Using their descriptions for clues, what physical gear do you think each of these filters is modeled after? I feel if I knew more about analog synths, I would know what these are modeled after from the descriptions. Ableton Live now has analog-modeled filters.
