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Casio GP400 Celviano Grand Hybrid Digital Piano in Black

Bechstein Action

Casio GP400 Celviano Grand Hybrid Digital Piano in Black

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5 Year Warranty
Select Your Bench and Accessories
Price £2349.00
Casio Promotion

Well, if you are looking for the most realistic Grand piano feel and response, then look no further than this Celviano piano. Bechstein actions are respected around the world and now at last you can experience their action in a digital piano. Add in samples from Berlin, Vienna, and Hamburg, and you now have what has to be one of the worlds best digital pianos.
5 Years Parts and Labour warranty included with this piano.

Perfect combination of innovation and tradition

The GP-400 is the latest - and the most elegant - model in the CELVIANO Grand Hybrid lineup. Like the GP-300 and the GP-500 comes the GP-400 with the three historically popular grand piano sounds and the keyboard is made of the same high-quality Austrian spruce as keyboards in C. Bechstein grand pianos. The new look and haptic makes you feel like playing an ordinary piano.

Product highlights

  • Developed in collaboration with C. Bechstein
  • AiR Grand Sound Source (256-tone polyphony (max.)
  • Natural Grand Hammer Action
  • Grand Pedal System
  • Grand Acoustic System
  • Scene Setting

Thoroughly refined sound and reverberation reminiscent of a grand piano

The AiR Grand Sound Source reproduces the same beautiful sound and rich reverberation as a grand piano.

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 model offers 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

The GP-400BK features 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 model also boasts 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

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 experiences made possible by a digital piano

Scene feature enables pieces to be played with the optimal sound

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-400BK 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.

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Keyboard Number of keys 88
Layer/Split Yes/Yes
Duet Adjustable tone range (-2 to +2 octaves)
Transpose 2 octaves (-12 to 0 to +12)
Octave shift 4 octaves (-2 to 0 to +2)
Sound source Number of tones 35
Maximum polyphony 256
Touch response 5 sensitivity levels, off
Tuning 415,5 Hz to 440,0 HZ to 465,9 Hz
Temperaments 17 types
Stretch tuning 5 types, off, auto setting
Acoustic Simulator Damper resonance Yes
Damper noise Yes
Hammer response Yes
String resonance Yes
Lid simulator Yes
Open String resonance Yes
Aliquot resonance Yes
Pedal action noise Yes
Key on action noise Yes
Key off action noise Yes
Effects Types Brilliance: Yes (-3 to 0 to 3)
Hall simulator: 12 types
Chorus: 4 types
DSP: Yes
Headphone mode: Yes
Concert Play Number of songs 15
Song volume Adjustable
Modes 2, LISTEN + PLAY
Music Library Number of songs 60
User songs 10 (up to approximately 90KB per song, approximately 900 KB for 10 songs)
Song volume Adjustable
Part On/Off L/R
Grand Piano demo song Number of songs 6
MIDI Recorder Functions Real-time recording, playback
Number of songs 1
Number of tracks 2
Capacity Approximately 5000 notes total
Recorded data protection Built-in flash memory
Volume level Adjustable
Audio Recorder Function Real-time recording and playback to USB flash drive
Number of songs Max. 99 songs, approximately 25 min/song (44.1 kHz, stereo, .WAV format)
Volume level Adjustable
Metronome Beats 0 to 9
Tempo range 20 to 255
Volume level Adjustable
Scene 15 presets, up to 10 user settings
Pedals Types Damper: Yes, with halfpedal-operation
Soft: Yes
Sostenuto: Yes
MIDI 16-channel multi-timbre receive
USB Flash Drive Capacity 32 GB
More functions Setting backup, operation lock
Display LCD with backlight
Inputs/Outputs Types Phones: Stereo standard jacks x 2
LINE IN: (L / MONO, R), standard jacks x 2
LINE OUT: (L / MONO, R), standard jacks x 2
MIDI: In/Out
USB port: Type B
USB flash drive port: Type A
Pedal connector: Yes
Speakers Size 16 cm x 2 + (10 cm + 5 cm) × 2
Output 30 W x 2 + 20 W x 2
Volume Sync Equalizer 3 types, off
Power Requirements AC adaptor AD-E24500LW
Auto power off Approximately 4 hours after last operation
Power Requirements 24V - 38 W
Dimensions W x D x H 146,2 x 48,9 x 100,3 cm
Weight 85,5 kg
Accessories Included AC adaptor, score book, music stand

Specifications are subject to change w/o notice.
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Casio GP400 Piano reviews


Feedback for Casio GP400 Piano has been compiled from 6 customer reviews

Date Product Score Customer Comment

Casio GP400 Piano


Just getting to know it. Keyboard is superb and it sounds great.

Casio GP400 Piano


Excellent product - just right when looking for quality piano touch and sound in a limited space & townhouse environment.

Casio GP400 Piano


Keysound staff helped discover the right product for the job,

Casio GP400 Piano


I thought the loudspeakers could be more powerful given the quality of the sound it produces. The place where music sheets sit on could be lower for smaller built people like myself (5'3").