For many years, Soundtronics offered the Music From Outer Space (MFOS) and YuSynth modules which are now discontinued. Soundtronics produced breakout PCBs to make MFOS / YuSynth assembly easier, these are now only available while stocks last. Soundtronics also produced its own modules which have been further developed into M² modules, the last remaining original PCBs again only available until they are gone.

From 2024, the M²Synth from Soundtronics has become our main modular synth format.