The legendary polysynth returns with contemporary features, like USB, aftertouch, and velocity sensitivity. Otherwise, it's the same incredible analog synth from the '70s and '80s, using as many original parts as possible to embody all three classic versions (Rev1, Rev2, and Rev3). Just as vintage units and emulations continue to be employed on records by everyone from Radiohead to Frank Ocean, the Rev4 will be a songwriting and studio tool for years to come.