Featuring massive polyphony, a modern 6-operator FM engine, a 16-track sequencer, and more, the Kurzweil PC4 delivers a powerful update of the company’s renowned V.A.S.T. synthesis technology. The PC4 packs Kurzweil's patented FlashPlay technology, 256-voice polyphony, and powerful DSP into a portable performance controller and synth workstation designed to meet the demanding requirements of professional performing artists, songwriters, and studio musicians. The PC4’s 88-note, hammer-action keybed is velocity-sensitive and gives you the sublime feel of an acoustic grand piano with the added expression of aftertouch.