Grand Hybrid Technology

Sound

The Celviano Grand Hybrid models feature three tones inspired by world-renowned grand pianos from Berlin, Hamburg and Vienna, each with its own distinctive sound profile. One of these tones, ‘Berlin Grand’, was developed in collaboration with renowned German grand piano manufacturer C. Bechstein. To develop the sound, Casio analysed C. Bechstein's top-of-the-line ‘D282’ grand piano in detail.

The Celviano Grand Hybrid models combine legendary sound with innovative technology. The AiR (Acoustic Intelligent Resonator) Grand Sound Source provides expressive dynamics, and thanks to multidimensional morphing, natural sound transitions are possible – even with gentle pianissimo and powerful forte. The integrated acoustic simulator authentically brings out the subtle nuances of acoustic grand pianos.

With an acoustic grand piano, the volume and sound quality change from the moment the key is pressed to the moment the sound fades away. CASIO's multidimensional morphing technology enables natural, flowing transitions in volume and tone colour based on the strength of the keystroke.

The string resonance of the CELVIANO Grand Hybrid models emphasises the harmonic relationships between different strings when the keys are struck. The integrated damper resonances reproduce the resonance that occurs when the damper pedal is pressed. The GP-510 is also equipped with open string resonance and aliquot resonance, which provide additional sound realism.

Resonance System

Expresses the finest changes in volume and sound characteristics with different types of touch and over time.

Hammer Response

The timing of the sound development of a grand piano varies subtly depending on which keys are played, even when the keys are struck with the same force. To authentically reproduce this characteristic, CASIO has installed corresponding settings for each of the three concert grand piano sounds. The timing of the sound generation can also be adjusted individually.

Key Off Simulator

The length of time that the sounds produced by a grand piano continue to resonate varies depending on the speed at which the fingers are lifted from the keys after striking them. The Key Off Simulator generates the length of the reverberation according to a similar principle, allowing you to express subtle nuances in staccato and legato playing.

Long-lasting sounds

Short-lasting sounds

Action Sound System

A grand piano produces a range of mechanical sounds that are an important part of the playing experience. Depending on the model, Celviano Grand Hybrid models incorporate action sounds whose volume can be adjusted independently or switched off. Damper sounds and the sounds made when the keys are pressed and released are included in the GP-510 and GP-310. Pedal sounds are only integrated in the GP-510..

The integrated lossless audio compression guarantees an authentic sound experience without compromise.

The Grand Pedal System continuously detects the position of the damper pedal, allowing for fine tuning of the damper volume and tone length. The Half Pedal Position function also allows you to set the pedal position at which the damper effect begins. When playing with the soft pedal, changes in volume and tone characteristics are authentically reproduced.

The GP-510 incorporates Damper Noise and Pedal Action Noise functions, which reproduce the subtle sounds heard on an acoustic grand piano.

Casio has developed a speaker system for the CELVIANO Grand Hybrid that reproduces the typical sound radiation of an acoustic grand piano upwards and downwards. It enables a powerful and dynamic expression of rich, powerful basses to bright sounds in the mid to high registers. The four-channel audio system has six speakers arranged to emit sound from inside the cabinet to the outside. The system delivers a 3D sound field experience with sound reflections from the piano lid and floor, just like when playing an acoustic grand piano.

Sound development via the real wood keyboard – just like on a grand piano
Optimal sound development via the rear of the speaker
Reflections create a sound field that surrounds the player
Conveys a more powerful and dynamic playing experience

The piano lid can be raised or lowered, thereby influencing the sound.

The integrated lid simulator also reproduces the acoustic effects of different grand piano lid positions. Four selectable opening degrees allow you to specifically influence how direct or soft the sound appears – according to your personal taste.

The integrated reverb simulator offers twelve different types of reverb based on detailed acoustic analyses of world-famous concert halls. There are four listening positions to choose from for each room – from directly at the instrument to the perspective of a seat in the audience.

Ideal for playing at low volumes – e.g. at home or at night. The Volume Sync Equalizer automatically adjusts low and high frequencies so that the sound remains full and balanced even at low volumes.

Headphone mode provides a natural, spatial sound image – just like an acoustic instrument.

Keyboard

The Natural Grand Hammer Action is a keyboard system that authentically reproduces the touch of an acoustic concert grand piano. High-quality wooden keys and precisely weighted hammer heads follow the movement of an acoustic grand piano. The keys are made of the same materials as traditional concert grand pianos, including a finely tuned surface and balance beam wood. The result is a playing experience that closely resembles that of a real grand piano.

The white and black keys are made entirely of wood.
The key frame is also made of wood.
The same woods are used for the keys as for C. Bechstein grand pianos. This high-quality wood is carefully dried and processed before the keyboard is built.
The same material is used for the surface of the keys as for a grand piano – acrylic for the white keys and phenol for the black keys.
The action provides a natural playing feel – even very fast note repetitions are possible.

Hammer action with three sensors
The hammer movement of the action is modelled on that of a grand piano, with three sensors precisely detecting the playing performance. Trills and note repetitions are easy to execute.
Distance of the pivot point from the keys
The position of the pivot point is designed to be the same as on a grand piano. This contributes to stable playing behaviour, as the touch is equally heavy regardless of where the key is struck.

Not only is the total force of a struck key recorded, but the entire key travel is also modelled exactly on the behaviour of a grand piano.

Grand piano

Representation of the reaction force in relation to time

CELVIANO Grand Hybrid

Representation of the reaction force in relation to time

^{*Key velocity at approx. 300 mm/s (mf degree of performance)}

Thanks to precise simulations and fine tuning, the relationship between key pressure and volume has been optimised so that the dynamics from pianissimo to fortissimo can be controlled naturally and expressively.

Casio has thoroughly researched the speed at which the keys of a grand piano return to their normal position after being struck. This research ultimately led to the development of a keyboard mechanism with a consistent return speed and stable response across the entire range of the instrument.

Piano experience

: Be inspired by the Concert Play function: You play solo and are accompanied by realistic orchestral recordings — just like in a real concert. You have full control: playback, pause, fast forward, rewind or the practical A-B repeat function help you practise specific passages.

And best of all, you can easily adjust the tempo so that even challenging pieces become easier step by step.

Additional songs are available for Concert Play. For more information, click here.
: This feature of the GP-510 provides a suitable sound environment for the music being played, including recommendations for composers and genres. Each scene combines timbres, effects and reverberation to create a harmonious overall picture. There are a total of 15 presets to choose from, which can be customised and saved as personal favourites (up to 10 memory locations).

Features

: The Grand Hybrid models can record performances on a standard USB storage device as stereo audio files (44.1 kHz, stereo WAV format). The recordings can be stored or played back on a computer or transferred to other media. The piano's integrated playback function supports functions such as pause, fast forward, rewind and A-B segment repeat.
: This function allows you to record your own performances in the CELVIANO Grand Hybrid's memory, among other things.
: The Grand Hybrid models include 60 piano pieces for practising and playing along with. The scores for these pieces are included in the scope of delivery. The parts for the left and right hands can be practised separately. Tempo changes are also possible, and the A-B segment repeat function allows you to practise individual sections of the piece. A sound setting is preselected for each piece, but you can select your preferred sound, such as Berlin Grand, Hamburg Grand and Vienna Grand.
: The keyboard can be divided into two areas with the same range – handy for practising together.
: The layer function allows two tones to be layered simultaneously for a fuller, combined sound. The split function divides the keyboard into two areas, each of which can be assigned different sounds – ideal for bass in the left hand and piano in the right hand, for example.
: To save energy, the CELVIANO Grand Hybrid automatically switches off when the instrument has not been played for a long time.
: The CELVIANO Grand Hybrid can be controlled intuitively via a simple, well-designed control panel. The Berlin Grand, Hamburg Grand and Vienna Grand can be accessed via dedicated buttons for each piano sound.

New in GP-510 and GP-310

More natural sustain with improved chord resonance
More gradual decay of notes – individually optimised for each of the three grand piano sounds
Smoother transitions when playing legato

Improved, clear sound
Automatically adjusts the balance between the upward and downward facing speakers depending on the volume to create a natural sound field