The Korg Kronos is the flagship keyboard of Korg's synthesizer line. It is available in three configurations, each with the same phenomenal performance, production and synthesis capacity. The only difference between the three models is the key bed. This is the full 88-key version, equipped with Korg's RH-3 (Real Weighted Hammer Action 3) keyboard, one of the professional keyboard industry's best-loved piano touches. It is the same keyboard used on Korg's upper-end piano models and on the Korg SV-1. The hammer weighting is graded, providing a heavier feel in the lower register and a lighter feel in the upper register, just as on a grand piano, offering superb playability.