Available as an assembled Module and as a DIY project.
This Module is currently available.
Expander Module for the CubuSynth Engine VCO
The Exhaust expander module features a Sub-Octave generator, selectable from VCO1 or VCO2, with a mix of -1 / -2 octaves.
There is a mixer for the selected Waveforms of VCO1 and VCO2, the AM output and an external Input, normalized from the RM output.
Furthermore there is a Gate output, which sends Gate signals whenever the Voltage of the Chaos generator is higher than the "V Ref" knob setting.