NPK-20 Professional Digital PianoNPK 20 builds on the popular NPK 10 digital grand piano with a full 88 note keyboard in the same compact and convenient format. The triple sensor, graded hammer action keys have been further optimised to better respond to downforce, rebound and legato passages. Sound is delivered through base mounted stereo speakers or from 2 headphone outputs under the keyboard's front edge. A huge palette of 271 internal sounds is divided into 7 groups, including a