The older model in the line of modern SEM modules, combines all the additional options.

For interaction with modular systems there are 21 CV inputs/outputs (3.5 mm jacks).

There’s a MIDI-CV converter so that it could work with MIDI equipment.

It is based on the almost unchanged SEM scheme of the model produced in 1974. The changes affected the replacement of vintage microcircuits, which are not produced now, with modern analogs. Such a substitution didn’t deteriorate the sound in any way. The analog part comprises:

Two VCOs producing sawtooth and rectangular waves. There is a possibility of PW and FM, oscillators detune, as well as synchronization mode.

Modulatable Low Frequency Oscillator - produces a triangular waveform that can be sent to modulate VCO, VCF or VCA.

Voltage controlled filter (VCF), state variable (LP, HP, BP, notch filter) with a slope of 12 dB per octave.

Two envelope generators with independent adjustment of attack, release and sustain time.