Press release


Casio to Release Digital Pianos With Three Different Historic Grand Piano Sound Profiles
Newly Developed AiR Grand Sound Source and Full-Fledged Wooden Keys
Sound Developed in Collaboration with C. Bechstein, World-Class Piano Maker

Berlin, September 2, 2015 – Casio Computer Co., Ltd., announced today that it will release two new digital pianos. With the new GP-500BP and GP-300, Casio is introducing the new CELVIANO Grand Hybrid lineup, which combines the advantages of both digital and acoustic pianos while delivering an experience like that of a grand piano, including the tone, keys, and playing comfort.

The two new models will bring together all the electronic musical instrument technology that Casio has developed over 35 years. These instruments are designed to faithfully represent the tone, keyboard and playing comfort of a grand piano.

Casio has developed a new AiR* Grand Sound Source that enables beautiful sound and rich reverberation just like a grand piano. It provides the sound profiles of three grand piano styles with a long history: the Berlin Grand, which is known for its elegant clear sound and a reverberation that gives each performance rich melodic color; the Hamburg Grand, which delivers gorgeous power and strength with plenty of string resonance; and the Vienna Grand, which provides a calm and stately sound with rich bass and beautiful tones when the keys are played softly. Of the three, the Berlin Grand sound was developed in collaboration with C. Bechstein, a piano maker with a history of over 160 years. As a result, the new models have moved beyond the realm of conventional digital pianos, demonstrating a commitment to nuanced sound creation.
*Acoustic & Intelligent Resonator

Furthermore, the GP-500BP and GP-300 feature a Grand Acoustic System that faithfully represents the sound of a grand piano as it emanates from above and below the soundboard. The system delivers three-dimensional sound with tonal elongation, expansion and depth.

Another feature is the Natural Grand Hammer Action Keyboard. It combines spruce wooden key material as used in C. Bechstein grand pianos, and a new unique action mechanism that delivers the right hammer movement, which has a big impact on the playing response of a grand piano. This allows the pianist to produce nuanced sound with a delicate touch that is essential for demonstrating the expressive power of the piano, while also enjoying reliable key response and supple playing comfort.

In addition, Casio is announcing the release of the CELVIANO AP-700, which also features the newly developed AiR Grand Sound Source.


AiR Grand Sound Source

Natural Grand
Hammer Action




Polished black finish


Satin black finish




Main Features of the GP-500BP, GP-300 and AP-700

Thoroughly refined sound and reverberation reminiscent of a grand piano

Newly developed AiR Grand Sound Source
Multi-dimensional Morphing smoothly transforms sound waves, and realizes tonal changes based on both time passage and intensity. Even during a gradual crescendo from pianissimo to fortissimo, the technology allows even and natural tonal changes.

Moreover, the String Resonance System, designed to deliver the string resonance of a grand piano, controls the amount and combination of resonance according to the playing situation. By producing reverberation that fits each of the 88 keys, the technology enables natural and comfortable performance.

By combining these two technologies, the new models each offer the sounds of three grand piano styles. The Berlin Grand is known for its elegant clear sound and reverberation that gives each performance rich melodic color, while the Hamburg Grand delivers gorgeous power and strength with a lot of string resonance. The Vienna Grand provides calm bass with a solid feeling along with soft and beautiful sound.

Natural Grand Hammer Action Keyboard enables even more delicate expression (GP-500BP and GP-300)
The GP-500BP and GP-300 feature keys made from high-quality spruce, which is also used in grand piano keyboards. The keys are also finished in the same way as on a grand piano. Since this makes them more familiar to the pianist, fingers are less likely to slip or fatigue. The new models also boast a new unique action mechanism that delivers the right hammer movement, which has a big impact on the playing response of a grand piano. The mechanism conveys delicate finger nuances more accurately, and enables dynamic touch to translate directly into expressive power.

Grand Acoustic System generates a space of three-dimensional sound (GP-500BP and GP-300)
Casio has developed a Grand Acoustic System that faithfully represents the sound of a grand piano as it emanates from above and below the soundboard. Through careful positioning of six speakers and the creation of sound pathways, the system delivers three-dimensional sound with tonal elongation, expansion and depth.

Special playing experience for a digital piano

Scene feature enables pieces to be played with the optimal sound (GP-500BP)
The Scene feature consists of 15 preset types for different composers such as Chopin and Liszt, as well as musical genres such as jazz and easy listening. The presets combine the best optimal tones, reverberation, and effects for the type of piece being played. Users can also create and save their own presets.

Concert Play offers an experience like playing with an orchestra
The spectacular sound of a live orchestra is recorded in a high-quality digital format. By playing the piano together with the recorded orchestra, users can enjoy the feeling of performing at an orchestral concert. The technology can also be used in practice, as it allows the tempo to be slowed, and also features rewind, fast forward, and repeat playback of A-B sections.

Hall Simulator provides the experience of performing in a special venue such as a concert hall
The Hall Simulator allows the pianist to enjoy the immersive sound found in different types of venues such as an Amsterdam church, or a classical concert hall in Berlin. Also, the GP-500BP and GP-300 enables users to switch between the Player's Position, which provides a sense of playing a real grand piano, and three types of Listener's Positions, which gives the pianist the effect of listening to the performance from the audience.

Since Carl Bechstein founded the Pianoforte production facility in Berlin in 1853, the name Bechstein has stood for the highest class of upright and grand pianos. C. Bechstein pianos have been appreciated by many famous composers and artists for their finest quality of sound and touch for many years. In the 21st century, C. Bechstein is still recognized as one of the world's leading piano manufacturers.

<Casio Computer Co., Ltd.>
Casio Computer Co., Ltd. is one of the world's leading manufacturers of consumer electronics products and business equipment solutions. Since its establishment in 1957, Casio has strived to realize its corporate creed of "creativity and contribution" through the introduction of innovative and imaginative products. News and product information from Casio is available at

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