Rev 4 sounds GLORIOUS... and with those extra, but well considered new-gen features, it sends it over the edge vs vintage Prophet 5s. Come one, the same sound (or basically the same) but with modern reliability, aftertouch, velocity, usb midi, more storage, TWO FILTERS!!!! and costs less than half what a vintage one goes for AND has 10 voices to boot! (Prophet 10 anyway which is what I've ordered).
Best f-in new analog synth in decades... in fact, best analog poly since.............. well , the Prophet 5 lol. (Jupiter 8 isn't quite as good sounding)