The PSR-EW400 series is an excellent gigging instrument, with a 76-key keyboard that more experienced players can make the most of. The latest PSR-EW425 features a newly developed tone generator that delivers stunning improvements in sound quality as well as high-quality effects such as delays, and as a premium organ sound sampled from the YC series of high-end stage keyboards. 820 Voices and Super Articulation Lite Voices Premium organ sound 290 Styles 2 channels/41 types of DSP insertion effects Quick Sampling Groove Creator Live Control Knobs, Motion Effect functionality, pitch bend wheel Mega Boost Direct Category Access buttons USB Audio Recording/Interface Mic input and vocal effects Individual L/R outputs 12W + 12W powerful speakers.