Korpa 
A New Standard in Organic Sound, Expression, and Realism
Roland’s acclaimed SuperNATURAL Piano Sound Engine evolves with Acoustic Projection technology — an innovative, multi-dimensional sound system built into the new HP500-series pianos. Acoustic Projection is inspired by the flagship V-Piano Grand and its ability to reproduce the natural sound field of an acoustic piano. The marriage of Roland’s world-leading technologies in the HP500-series empowers pianists with a complete, immersive acoustic-piano experience.
- SuperNATURAL Piano sound engine with seamless tonal changes according to touch, plus beautiful decay and faithful reproduction of the differences in tone between each key
- Play classical piano masterpieces using the authentic sounds (such as true fortepiano) they were written for
- Elegant and bold design; HP500-series pianos are perfect for traditional or contemporary interiors
- Onboard LCD offers user-friendly operation with straightforward front-panel layout
- Energy-saving technology achieves powerful and dynamic sound with lower power consumption
SuperNATURAL Piano Engine
All three of the new HP-series pianos incorporate Roland’s SuperNATURAL Piano technology for seamless velocity response, natural note decay, and authentic key-range behavior to reproduce perfect piano sound and expression. Tone color changes seamless in response to touch, accurately translating the player’s emotions. Tone decay is natural and organic, with the decaying sound not only decreasing in volume, but also gradually changing in color to a softer tone. Each note has its own character, which creates variations in tonal color and resonance of each note.
Authentic Fortepiano Tones Onboard
In addition to the selection of onboard grand-piano sounds, the new HP500 series features a newly added Early Piano category containing four fortepiano variations and two harpsichord variations. Masterpieces composed by maestros such as Mozart, Beethoven, and Chopin can be played with the original sounds from the period. The appreciation and understanding for the piece is heightened when using the instrument that was actually used by the composers. You can also play these early piano sounds with built-in historic temperaments which are ideal to play with other classical instruments.
Real-Feel Keyboards
The HP503 contains an Ivory Feel-S keyboard with Escapement. With fast key-repetition and sensitivity, these keyboard faithfully translates into sound the subtle differences in tones from different playing styles and force at which they are played. The keys are finished with material that provides moisture-absorbing properties, resulting in a keyboard with the natural texture and tactile sensation of real ivory and ebony.
Progressive Damper Action Pedal
The HP500 series is equipped with “Progressive Damper Action Pedals” that have light resistance at the beginning of the stroke and more resistance the instant they begin to take effect, just like real acoustic pianos. This makes it easy for the performer to know when the pedals begin take effect, and also allows half-pedal techniques for subtle control of aftertones and resonance. This pedal can accurately convey the techniques of the most demanding pianists.
Ease of Use
The simple and intuitive control panels afford quick and easy access to the HP500 series’ numerous features and applications. LCD panels provide the ideal visual interface with the instrument.
Environment-Conscious Design
All HP500-series pianos achieve low power consumption while still delivering high-impact performance. They also feature an Auto Off function, which, when activated, automatically switches the power off after a specified period of inactivity; inactivity time is selectable from 10 minutes, 30 minutes (default), 240 minutes, and off.
