Euphonycart Present Korg Electronic Piano B1SP Black. The streamlined Korg B1SP digital piano was built from the ground up to deliver realistic piano feel, excellent sound, and effortless ease of use. Korg’s Natural Weighted Hammer keyboard yields terrific dynamic response, infusing your playing with inspiration. Motional Feedback technology compensates for any sound coloration caused by the B1SP’s speaker enclosures, resulting in a natural-sounding performance. Packed with eight expressive, highly detailed instrument sounds, the Korg B1SP is a top-notch, value-packed digital piano!