I like my Casio Privia PX-5S, however, and in spite of the files i have downloaded from this forum, i always end up using my iPad connected to my privia. This is my opinion, but the piano sounds within the Sample Tank seems to be richer, cleares, and closer to the real pianos of their kink. The Privia's kinda sound dull. I have been all over the settings and still not very exited with the tonal quality of the piano sound files.. any suggestions?