i think korg always sounded better than yamaha up to the the s950. i never tried another yamaha after that. recently i did play a sx900... my opinion is that now yamaha sounds as good as korg. yes now it has a touch screen, upper 3, excellent speakers, very good drums in the styles.... now i would still go buy a pa1000 instead. why ? because in my country south africa, korg is far cheaper. simple as that.