Casio AP650M Celviano Digital Piano


Quick Overview


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Casio AP-650

The premier digital piano in the Celviano series, the AP-650 showcases Casio’s finest sound and technical abilities. A sophisticated blend of traditional acoustic piano playing with all the electronic capabilities that give digital pianos an extra advantage in the modern world. 


The pianist’s technique is a priority with the AP-650 and so it is built with Casio’s Tri-sensor Scaled Hammer Action Keyboard II. This gives the AP-650 all the expressive capabilities of a real acoustic piano.

Vital to maintaining the quality of a pianist’s skill is reproduction of the feel of an acoustic keyboard, the Tri-sensor does this through state-of-the-art engineering. Not only is the keyboard weighted like an acoustic piano, it is also graded in that the keys in the higher register are lighter than the keys in the lower.

Touch sensitivity is essential when it comes to playing classical music where so much is dependent on the dynamics of the piece, with 3-levels of touch sensitivity the pianist of the AP-650 can determine the volume of the note they are playing by pressing the key harder or softer. Whilst the key-off simulator gives control over the length of the note’s reverberation according to the release speed.

The keys themselves are made from specially synthesised material that mimics the touch and behaviour of ebony and ivory; this reduces the chance of slippage and sticking that could hamper a pianist’s technique. The AP-650 is also fitted with the usual three pedals found on all acoustic pianos: soft, sostenuto, and sustain, with half-pedalling possible on the sustain pedal.


Sound reproduction in the Casio AP-650 is the realm of the Multi-dimensional Acoustic and Intelligent Resonator (AiR). The piano voices were Casio’s primary concern when creating the AP-650 and the AiR optimises these by recreating the subtle interactions between the strings, hammers, and wooden soundboard that occur naturally in an acoustic piano’s body. This undercurrent of harmony and dissonance is generally absent from digital pianos due to their lack of these elements, the AiR remedies this with stunning results.

The 4 speakers in the AP-650 are set up in a 2-way system that reaches a power of 60W, this is more than enough for any domestic setting. They are topped by a lid simulator, which attempts to recreate the effect of a grand piano’s lid and when lifted gives a brighter sound, this in comparison to the darker one produced when the lid is shut.

To live up to its title as leader of the Celviano digital piano range, the AP-650 is full to the brim with voices, 250 in total. From 12 grand piano and 9 electric piano voices to 15 string and synth pads, the AP-650 covers almost every instrument in between. These can be layered or split by selecting two voices to be sounded simultaneously either by the whole keyboard or a separate half each. Reverb, chorus, brilliance, and DSP effects can all be tooled up to add that something extra to the mix.


A truly modern piano, the interactivity of the AP-650 is aided by a backlit LCD display. This helps to navigate the many additional features this digital piano is loaded with. There are 180 accompaniment rhythms taken from all popular music genres, these respond to what is played on the keyboard to give a rhythmic backing to the main event. 10 blank spaces for rhythm tracks are free to be filled up by the user.

A music library of 60 songs and 10 user slots are available for the expert player to jam along to or for the beginner to learn with. A lesson mode teaches right and left hand techniques. The duet mode effectively splits the single main keyboard into two separate keyboards, each with an equal pitch range; wonderful for interaction between a teacher and pupil.

There is a recording facility capable of containing 5 different songs of 17 tracks. These can be exported via the SD memory card or the USB drive. MIDI connections open up the AP-650 to sequencers and other instruments for pianists wanting to perform. Whilst the AUX In/Out ports serve a variety of functions, not least the possibility of connecting the piano to external speakers and PA systems.


Keys 88 Simulated Ebony and Ivory keys
Keyboard - Action Tri-sensor Scaled Hammer Action Keyboard II
Keyboard - Touch Response 3 sensitivity levels, off
Keyboard - Key Off Simulator Yes


Sound - Source Multi Dimensional Morphing AiR
Sound - Polyphony (maximum) 256


Tones - Built In 250 built-in tones: 6 Grand Piano (Modern) tones,6 Grand Piano (Classic) tones,9 Elec Piano tones,6 Vibes/ Clavi tones,13 Organ tones
15 Strings/Synthpad tones,17 Bass/Guitar tones,36 Various tones,128 GM tones,14 drum sets
Tones - Resonance Hammer, Damper, String
Tones - Lid Simulator Yes
Tones - Layer/Split Yes

Digital Effects

  Reverb (4 types), Chorus (4 types), Brilliance, DSP (preset for some tones)

Rhythms (Auto-accompaniment)

  180 (built-in) and 10 (user)

Music Library

Tunes 60 Music Library tunes
Demo Songs 6
Song Expansion (User Tune) 10


Function Part ON/OFF
Part Right Hand, Left Hand
Duet Mode Yes


  0,2,3,4,5,6 beats; tempo range: 20 to 255

Recorder (Song Memory)

  17 tracks (1 system track + 16 solo tracks), 5 songs, up to 10,000 notes per Song, Punch-in/Punch-out recording


Number 3 pedals (damper/soft/sostenuto)
Half-pedal Operation (damper) Yes

Key Transpose

  25 steps (–12/+12 semitones)

Tuning Control

  A4=440Hz ±99 cent


  Yes (full-dot LCD with backlight)

SD Memory Card Slot



  Yes (GM Level 1 compatible)


Headphones 2 (stereo standard)
Line OUT 2 (L/MONO, R; standard)
Line IN 2 (L/MONO, R; standard)


Size 16 cm x 2.5 cm x 2
Amplifier 30W + 30W
4 speakers/ 2-way system Yes


  AC Adaptor, Score Book, Headphones Hook



Size W x D x H ( with stand)

  1,377 x 427 x 911 mm

Weight ( with stand)



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