The new top of the range 88 keys Yamaha DGX-630 features a fully weighted 88-note Graded Hammer keyboard action, a new piano sound with 64-note polyphony and over 500 high quality sounds. The 88-key Yamaha DGX-630 is a weighted graded hammer action portable keyboard. Upgrades from the previous model include 64-note polyphony, a beautiful matching [Read More]