Roland is proud to add the latest in digital piano technology to the RD-700GX SuperNATURAL®: Piano Kit (K-RD700GX1). Comprised of a dedicated expansion board and a USB memory key to update the operating system, the SuperNATURAL Piano Kit is a dream for musicians who want the utmost in authentic playability and the highest-quality piano sounds available. Derived from groundbreaking V-Piano®: technology and the 88-key stereo multisampling engine, the SuperNATURAL Piano Kit enhances three dimensions of piano expressiveness to the RD-700GX. Every detail of the playability of an acoustic piano's sound is reproduced. The result is seamless tonal change that corresponds to key pressure, decaying sounds that linger and fade naturally, and a authentic sound transition from note to note across the keyboard. The SuperNATURAL Piano Kit also adds 17 new SuperNATURAL piano sounds designed exclusively for the RD-700GX. Combining the SuperNATURAL Piano Kit with the PHA II Ivory Feel keys of the RD-700GX, and pianists are now able to have the full expressive capability of an acoustic grand piano in a top-of-line digital stage piano.