Support for MPE (MIDI Polyphonic Expression). This enables the Prophet-6 and OB-6 to respond to MPE-driven controllers such as the LinnStrument®, Expressive E Osmose®, Roli Seaboard® series, and others.
Prophet-5 Rev 4-style "vintage" mode. This gives the Prophet-6 and OB-6 a looser, more organic sound that emulates the behavior of vintage synthesizers where the behavior of individual oscillators, filters, and envelopes vary from voice to voice.
Improved aftertouch curves for enhanced expressiveness when using the Prophet-6 and OB-6's own keyboard.