The Yamaha Arius YDP-162"s Graded Hammer action with Synthetic Ivory keytops give the performer a tactile surface reminiscent of the keys found on the finest pianos throughout history. And with a more powerful 20W stereo amplifier, its PureCF sampling more expressively delivers Yamaha"s CFIIIS concert grand piano tone for the more experienced player. If your goal is to become a better pianist, the Arius YDP-162 digital piano is equipped to help make that goal a reality.