Kurzweil has published several videos on the new PC3:
PC3 Sneak Preview VA1
PC3 Sneak Preview Pop Keys
PC3 Sneak Preview Mellotron
PC3 Sneak Preview EPs 1
PC3 Sneak Preview EPs 3
In addition to Kurzweil’s renowned Triple Strike Grand Piano, the PC3 features hundreds of new basses, drums, guitars, and synths sounds. Many features of the PC3 were inherited from the K Series–you might recognize the pop up style menu help screens. You also get a collection of vintage keyboard emulations, the KB3 Mode and over 250 professional sounding orchestral and string section programs.
The PC3 has 128-note polyphony, a 16-track sequencer, 4 independent arpeggiators and more effects processing power than Kurzweil’s standalone KSP8 processor. There is an USB connector and flash card port for import/export of data plus an angled display to view it all. The nine sliders/drawbar controllers and a newly designed keyboard action are all Kurzweil.