The audio that screams from an SEM is fat, fine and funky, with a tonal variety unlike any other sound-generating device on this rock we call home. Gang up four of these monsters, and you've got sounds that're thicker than thunder. SON OF 4 VOICE's SEMs bring back vintage '70s design ... 100% discrete analog ... absolutly no custom chips. SO4V can be used as a 4-voice polyphonic synth or as 4 individual synths under MIDI control. Two SO4Vs can be ganged together to create an 8-voice.