The features of the CLP 440 are: Real Grand Expression. This phrase defines the expressive capability of Clavinova. It is not only the full realization of the sound, the touch and the pedals, but the application of technologies nurtured by crafting acoustic pianos to perfectly integrate these three elements into a single piano. This piano produces that exact sound you want through the touch of the keys and the feel of the pedals. As you play, you will truly feel as though you are playing a grand piano. Pianists enjoy a touch that clings firmly to their fingers, just like the ivory keyboards historically used in top-class pianos. Synthetic ivory keytops feature a soft, slightly porous surface that gives keys added grip and natural friction for improved ease in playing, especially during long performances or practice sessions. The keys' smooth, refined texture imparts a feeling of luxury and is easy to clean. The keyboard must respond perfectly to the touch of your fingers so the notes sound just as you intend.
Because the keyboard plays such a critical role, it must allow you to play smoothly and maintain good touch for long periods of time. That's why all 88 keys are equipped with Keyboard Stabilizers. This not only lets you play with a natural touch, it greatly improves the stability and durability of the keys. The grand piano Voices of a Clavinova were obtained by recording the sounds of a Yamaha concert grand piano that led to the creation of the CFX, the piano selected for a performance by the 2010 winner of the famed International Frederick Chopin Piano Competition. A single piano best suited for recording was selected and then tuned to the finest possible condition by a veteran piano tuner. All the sounds were recorded resulting in a sound that displays not only the beauty of each note, but the harmonized sound of a single piano. Because Yamaha places so much importance on the joy of playing, the speakers, amps and other acoustic systems have been optimized so the player hears nothing but stunning sound during a performance.
These musical instrument-like resonances give the impression that the Clavinova is more acoustic than it is digital. The touch of the Clavinova keyboard has been praised by pianists for a performance feel that makes you forget it's a digital piano. The secret behind this superior touch is the same hammering system and spring-less mechanism as a grand piano. Depending on the weight of the hammer, the force of your touch and the natural key return when you release it, the Clavinova faithfully reproduces the keyboard touch of an acoustic piano from the heavy feel in the lower range to the light feel in the higher range.
Also important is Yamaha's unique three-sensor system, which accurately senses and interprets the behaviour of the keyboard, just like a grand piano. When playing continuously or with a light trill, techniques used in many pieces such as Für Elise, you can play with a bright, vivid feel. Stereo Sustain samples provide the mellow reverberations created as you depress the damper pedal. Damper Resonance similarly produces broad and deep resonances when the pedal is used. The result is realistic sound, just as if you were playing an acoustic piano. You will even hear the subtle changes that occur according to whether the player begins to press the pedal before or after striking a key.