Yamaha S90XS Synthesizer; 88-Note Balanced Hammer-Weighted Action The sounds of the Motif XS plus a huge new S6 handcrafted grand piano sample New Performance Creator for instant splits, layers and drum performances 4 knobs, 16 backlit LEDs and tons of buttons for direct hands on control /XLR Combo jack A/D input (with front panel controls) for adding vocals and guitars 88 key Balanced Hammer weighted action with initial and aftertouch