The Best...The SP2X delivers the legendary Kurzweil sound, with all of its detail and refinement, in a digital stage piano which is both professional and easy to use. Using the next generation of Kurzweil technology, the SP2X provides some of our best sounds: pianos, EPs, strings, pads, mallets and voices, all available at the touch of a button. The Sound and Feel...Endless hours of engineering and sample editing went into our Triple Strike Grand Piano sound, and it shows. Behind the scenes, the SP2X's powerful synth engine brings these samples to life and makes them sing. The result is an instrument which not only sounds like, but feels like a real piano. Polyphony...64 note polyphony ensures that notes will continue sounding even under high demand performance situations.