Korg did an amazing job with the SV1 a decade ago... but the SV2 is definitely a great move ahead. Many mention the design, which I love, but my main focus is sound and quality. Impressive. The SV2S, with built-in speakers by K-array, really offers a very good sound with the radiator technology to boost the bass. I was not sure about these speakers, and I must say that although they lack some power (how could they for their size?) the sound is really great for a medium size room, with a perucussionist playing softly. If you're looking for a good digital keybord for the next 10 years, the SV2S should be in your "must try" list. Enjoy!