Casio Celviano GP400 Grand Hybrid Piano - Black

In Stock – dispatched within 48 hours FREE Delivery on orders over £100

Part of the Celviano Grand Hybrid range, the GP400 has a honed look and touch that make musicians feel they are playing an acoustic grand piano. Packed with features that include 88 full-length wooden keys made from high-quality Austrian spruce giving a natural grand piano feel, three piano tones from prestigious European grand pianos, an acoustic grand piano system that fills the room with rich and blended sounds and a hall simulator emulating characteristics of famous concert halls around the world. A feature-packed piano will surprise even the discerning pianist with 14 grand piano tones and 35 instrument tone including strings, organs, harpsichord and more.

Rent from £117 monthly
0% Credit £86.21 monthly

Three Legendary Grand Pianos in the GP400

Casio's new AiR Grand Source incorporates three of the worlds finest grand's in one piano. Handsomely named the Berlin, Hamburg and Vienna Grands, each one is the result of countless hours of precise analysis and study of their unique characteristics. They are faithful and expressive recreations of these distinctive pianos.

  • The Berlin Grand has a balanced and elegant sound, ideal for playing impressionistic music. 
  • The Vienna Grand has a brilliant rich sound, loved for its wide range of expression.
  • The Hamburg Grand has an impressive low range of warm tone, great for both soft and vigorously playing.

The GP 400 Authenticity Begins at the First Touch.

The moment your hands touch the keys the GP 400 delivers the authenticity seen in a grand piano. The revolutionary natural grand hammer action keyboard features 88 full-length wooden keys made from high-quality Austrian spruce using the same manufacturing process found in C.Bechstein Concert grand pianos. A keypress sends a hammer along the same vertical path as a grand piano, with the same essential weighting and pivot points, resulting in a true and uncompromising piano touch.

Grand Acoustic Speaker System

The Grand Acoustic System delivers three dimensional sound thanks to its six-speaker grand acoustic system. By having the speakers face three directions, the GP400 can comfortably deliver classic sound to both the musician and the audience, closely reminiscent of a truly acoustic grand piano. The headphone mode optimises the piano tone for silent practice.

Hall Simulator

Using real acoustic measurements, the Hall Simulator recreates the ambience and character of 12 famous concert halls. Experience the thrill of listening to unique acoustics as you play. 

Five Year Warranty

This Casio product comes with a generous five-year warranty. This protects your piano in parts and labour costs for any manufacturing fault.

Casio GP400 Features:

  • Developed in collaboration with C. Bechstein.
  • 88 full-length wooden keys, as found in an acoustic grand piano.
  • Natural Grand Hammer Action mechanism.
  • Three European piano tones in one digital instrument, including a Bechstein D282 grand piano. 
  • Grand Acoustic speaker system.
  • Hall Simulator with 12 different concert halls. 
  • CASIO Five Year UK warranty. 

Casio GP400 Dimensions:

  • Height - 1003mm
  • Width - 1362mm
  • Depth - 489mm
  • Weight - 85.5KG
  • Finish - Black Wood Grain

Casio Specifications:

  • Type: Natural Grand Hammer Action

  • Touch Response: 5 Sensitivity Levels

  • Number of Keys: 88

  • Duet Mode: Adjustable Tone Range, ±2 Octaves

  • Transpose: 2 Octaves (-12 to 0 to +12)

  • Octave Shift: 4 Octaves (-2 to 0 to +2)

  • Speaker: 16cm x 2 + (10cm + 5cm) x 2, 3-Way 6 Speakers

  • Amp Output: 30W x 2 + 20W x 2

  • Volume Sync Equalizer: Yes

  • Metronome: 0 - 9 (Tempo Range; Quarter Note = 20 to 255)

  • MIDI: Input/Output with USB MIDI Terminals

  • Lesson Functions: Right Hand Off, Left Hand Off, Both Parts Off

  • Body Finish: Black Wood Grain

  • Dimensions: 1462mm x 489mm x 1003mm

  • Weight: 85.5kg


  • Type: Grand Pedal System 3 (Damper, Soft, Sostenuto)

    • Half Pedal Effect for Damper; Continuous Recognition

Sound Source

  • Type: AiR Grand Sound Source

  • Maximum Polyphony: 256

  • Number of Tones: 35

  • Tuning: 415.5Hz to 440Hz to 465.9Hz

  • Temperaments: Equal Temperaments plus 16 Other Types

  • Stretch Tuning: 5 Types, Off, Auto Settings


  • Number of Tones:Tones Layer/Split: Yes, Duet Mode

    • Belin Grand
    • Berlin Grand Mellow
    • Berlin Grand Bright
    • Hamburg Grand
    • Hamburg Grand Mellow
    • Hamburg Grand Bridge
    • Vienna Grand
    • Vienna Grand Mellow
    • Vienna Grand Bright
    • Grand Piano Modern
    • Grand Piano

Digital Effects

  • Types:

    • Hall Simulator
    • Listening Position Settings
    • Chorus
    • Brilliance
    • DSP: Preset for Some Tones


  • MIDI: 2 Tracks x 1 Song

  • Max Notes: 5000

  • Audio Recording: Max. 99 Songs (44.1kHz WAV Format)

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Money Back Rental

Rental from£117.00
Minimum Rental Term 12 months

The amounts quoted are for illustration purposes only and do not form an offer. Credit is subject to status, terms and conditions apply.

Product configurations, for example different finishes, will not be recalcuated in the Finance or Rental terms. Should you be interested in other options or if you would like to know more then please contact one of our experts on 01223 354452

Scheme Availability

Map of Current Distribution Area

We are currently only able to offer our Money Back Rental and 0% Credit schemes if you live in the area marked, however, we can deliver across the entire country for payment by cash, card, or bank transfer.

We do offer a separate scheme for acoustic pianos further afield and we are expanding our logistics operation all the time so please contact one of our experts to discuss if you live outside of the area and we'll do our best to help.

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At Millers Music we are proud to offer our own, unique credit scheme with terms to suit you. Below are details of any 0% Credit and Money Back Rental options currently available for this product. To apply, add the items to your basket and checkout, selecting either Rental or Finance as a payment method and we'll be in touch.

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