I played the Korg ek50 a few hours more yesterday this time with my headphones and what a difference. The sound is very good through the headphones much better then through the onboard speakers. So i decide to keep it. Kabinopus was right about the dedicated buttons Casio don’ t have these. I played today the Casio ct x5000 and although it sound nice especialy the piano sounds overall the Korg is much better. The keys are very good on the Korg for the money and remind me of the keys on the pa50. I love the way it can load styles from the pa50 and microarranger. For the money it is really a Great little keyboard with the Triton sound engine. Aged yes but still sound very good. I love the strings and pads on this thing.