Sounds That Just Want to Be Played When choosing an instrument, there are some compromises you just can't make. Playing the CT-S500 featuring Casio's own AiX Sound Source, you'll get exactly the performance you imagine. It's a keyboard focused on sound, offering a range of rich tones created with expressivity in mind. Thanks to Casio’s Active DSP, effect parameters can be assigned to control knobs and tweaked in real time, adding greater dynamism and expression to your performance. Discover your own music with sounds that just want to be played. One Keyboard, Multiple Uses. Endless Possibilities. With musicians performing in an ever-widening array of settings, the fact that you can't always choose where you’re going to play makes the instrument you use all the more important. Maybe you'll want something with a built-in speaker so you can practice at home or compose. For rehearsals and gigs, the keyboard has standard line out jacks for easy connection to a PA or other external equipment. What’s more, the compact size of the CT-S500 makes it super portable. With all your bases covered, you've got a musical partner with endless possibilities Great Sound – What Every Musician Expects from a Great Instrument What makes a great instrument if not the great sounds it produces? The CT-S500 is powered by Casio’s advanced AiX Sound Source. Developed specifically for instruments focused on sound, it is capable of generating a wide range of high-quality and highly expressive tones.