- AiR Sound Source
- 19 Tones
Unprecedented Natural Reproduction of the Rich Expressive Power and Resonance of an Acoustic Piano
Multi-dimensional Morphing AiR Sound Source
The characteristics of CASIO’s newly developed Multi-dimensional Morphing AiR* Sound Source reflect thorough attention to detail in expressing the rich, resonating tones inherent to the piano. The capacity of the installed memory has been expanded to achieve a longer sampling duration and enhanced waveform data quality. The temporal changes in tone that create sound you would expect only from a piano, beginning with the initial sound and leading into a beautiful extension until the sound eventually vanishes, are reproduced naturally.
*AiR = Acoustic and Intelligent Resonator
A newly developed sound system projects sound upward and downward like a grand piano. The sound is not confined inside the instrument, but passes out naturally through the speakers to realize a deep listening sensation like that produced by a grand piano.
Natural Playing Feel Approaching That of a Grand Piano Firm Touch That Converts the Player’s Thoughts into Sound
Tri-sensor Scaled Hammer Action Keyboard II, with a grand piano’s unique sounding timing
The difference between the sound structures of a grand piano and a digital piano appears as a difference in timing, from the moment the instrument is played until the sound is audible. The new Tri-sensor Scaled Hammer Action Keyboard II responds by incorporating a system with three sensors that detect touches of the keys sequentially.
Simulated ebony and ivory keys with optimal fingertip fit for playing ease
The Simulated ebony and ivory keys offers the luxurious feel and texture as well as the smooth touch of a grand piano keyboard. The minutely detailed crimp surface finish inhibits finger slippage due to sweat and gives the sensation of a perfect fingertip fit, even when playing for extended periods.
Lid Simulator reproducing the sound effects resulting from an open lid
The sound volume and quality change when the lid on a grand piano is raised or lowered. The Lid Simulator reproduces the same acoustic effects for enhanced enjoyment with a digital piano. The acoustic effects of opening and closing the lid are simulated in fine detail. The piano sound you are seeking as you play is always available for your enjoyment by selecting the degree to which the lid is raised or lowered.
An unprecedented evolution of the digital piano
String Resonance resonator achieving deep, rich resonance with 88 keys
The sound produced by an acoustic piano is not only the sound associated with the keys that are struck. Other strings with frequencies closely associated with those producing the sounds resonate as well, adding their sound to give the music a uniquely rich resonance. In ordinary digital pianos, this string resonance effect is reproduced virtually with strings. The Multi-dimensional Morphing AiR sound source takes a different approach, however, by adopting a “string resonance” system incorporating a stereo resonance simulator for all 88 keys. The resonance of the 88 keys is reproduced completely and naturally. The resonance realized by playing a single tone is differentiated from that realized by playing a chord to reproduce the resulting variations in resonance in a natural manner. This even enables players to achieve varying resonances, controlling them at will by the strength of their touch, and thus to realize performances with the unique expressiveness of an acoustic piano.
Key Off Simulator reproducing tonal variations resulting from finger release
The lengths of the reverberations and expressions a piano produces vary depending on the speed at which players release their fingers after touching the keys. The new keyboard system incorporates a Key Off Simulator that reproduces these nuances resulting from key release naturally. Authentic reverberations that feel just like those of a grand piano are expressed as a result.
Damper Resonance* achieving a more naturally beautiful resonance than a pedal
The deep, beautiful resonance resulting from the use of a damper pedal is also reproduced naturally by a stereo resonance simulator installed on all 88 keys, an approach that differs from conventional simulated reproduction employing effect processing. The attention to detail goes so far as to simulate the resonance created by the lifting of the dampers themselves when the pedal is pressed. A continuously variable system has been adopted for the damper pedal, moreover, reproducing even the subtle changes in reverberation that occur in response to the delicate pressure exerted by partial pedal operation. This enables players to employ pedal operation to achieve gracefully expressive performances.
*4 adjustment levels
The Hall Simulator function simulates the differing acoustic characteristics of world-famous concert halls, from pure reverberation with outstanding tonal transparency to free-spirited, dazzling reverberation. An advanced equalizing system assures the pianist’s full enjoyment of vital piano sound.
High-quality audio data recordings of 10 live orchestra performances are installed. Pianists can play along with the recordings and enjoy the feeling of participating in a magnificent performance.
Headphone Mode automatically creates a spacious sonic image while wearing headphones, recreating the feeling of playing an acoustic piano. With the experience of wearing headphones significantly enhanced, pianists can enjoy playing naturally and feeling the sound field of a traditional grand piano.
Volume Sync EQ
Volume Sync EQ is especially useful for quiet playing at home and other times when you want to keep the speaker volume low. This function balances the sound at low volumes by adjusting the sound quality in the low and high registers. The result is a constantly pleasant playing experience, no matter where the volume is set.
- Audio Recording (44.1 kHz WAV Format / up to approximately 25 min. per song)
- 19 high-quality tones including stereo-sampled grand piano tones
- Digital Effects: Hall Simulator (4 types), Chorus (4 types), Brilliance, DSP (preset for some tones)
- Connection to App (Chordana Play for Piano Special Site)
- Lesson feature using 60 Music Library songs plus 10 user loaded songs
- GRAND PIANO button, ELEC PIANO 1 button
- MIDI Recorder: 2 tracks x 1 song, approximately 5,000 notes total
- USB flash drive port
- PHONES/OUTPUT: 2 (Stereo standard)
- AUTO POWER OFF
|Keyboard||88-key, Tri-sensor Scaled Hammer Action Keyboard II (Simulated ebony and ivory keys)|
|Touch Response||3 sensitivity levels, Off|
|Sound Source||AiR Sound Source|
String Resonance, Damper Resonance, Damper Noise, Hammer Response, Lid Simulator, Key Off Simulator, Key Action Noise
|Tones||19 built-in tones: Grand Piano (Concert, Mellow, Bright), Modern Piano, Rock Piano, Jazz Piano, Elec Piano 1, Elec Piano 2, FM E. Piano, 60`s E. Piano, Harpsichord, Vibraphone, Strings 1, Strings 2, Pipe Organ, Jazz Organ, Elec Organ 1, Elec Organ 2, BASS (LOWER)|
|Layer/Split||Layer (Excluding bass tones), Split (Low-range bass tones only)|
|Digital Effects||Hall Simulator (4 types), Chorus (4 types), Brilliance(-3 to 0 to 3), DSP (Preset for some tones)|
|Built-in Songs||10 Concert Play, 60 (Music Library)|
|Song Expansion||10 songs (max.) Up to approximately 90 KB/song|
|Lesson Function||Part ON/OFF (Lesson part: Right hand/Left hand)|
|Metronome||Beats: 0 to 9 (Tempo range: quarter note = 20 to 255)|
|Recorder||[MIDI Recorder] 2 tracks x 1 song, approximately 5,000 notes maximum, real-time recording/playback|
[Audio recording] Max. 99 songs approximately 25 min/song (44.1kHz WAV Format)
|Other Functions||-Sound Projection|
-Volume Sync EQ
-Connection to App
-GRAND PIANO button, ELEC PIANO 1 button
-Slide-type keyboard cover
-Auto Power Off: Off after approx. 4 idle hours (default setting)
-Octave shift: ±2 octaves
|Key Transpose||2 octaves|
(-12 semitones ~ 0 ~ +12 semitones)
|Tuning Control||A4 = 415.5 Hz ~ 440.0 Hz ~ 465.9 Hz|
|Pedals||3 pedals (damper, soft, sostenuto)|
* damper = seamless operation
|MIDI||This product is not equipped with MIDI terminals. MIDI communication between the product and a computer is performed using the USB port.|
|Speakers||12 cm x 2, 4 cm x 2 (2-Way, 4-Speaker)|
|Amp Output||20W + 20W|
|Input/Output Terminals||PHONES/OUTPUT x 2 (Stereo standard)|
USB: type A, type B
External power (24V DC)
* USB cable (A-B type) required to use USB terminal for computer connection.
|Power Requirements||AC adaptor: AD-E24250LW|
|Dimensions (W x D x H)||1,393 x 299 x 801 mm|
(w/o music stand)
|Weight||34.3 kg (w/o music stand)|
|Body Color/Finish||PX-870BK : Black wood tone finish|
PX-870WE : White wood tone finish
|Included Accessories||AC Adaptor (AD-E24250LW), Music Stand|
|EAN code||PX-870BK : 4971850362364|
PX-870WE : 4971850362371
- Nocturne Op.9-2
- Fantaisie-Impromptu Op.66
- Étude Op.10-3 "Chanson de l'adieu"
- Étude Op.10-5 "Black Keys"
- Étude Op.10-12 "Revolutionary"
- Étude Op.25-9 "Butterflies"
- Prélude Op.28-7
- Valse Op.64-1 "Petit Chien"
- Valse Op.64-2
- Moments Musicaux 3
- Impromptu Op.90-2
- Marche Militaire 1 (Duet)
- Frühlingslied [Lieder Ohne Worte Heft 5]
- Fröhlicher Landmann [Album für die Jugend]
- Von fremden Ländern und Menschen [Kinderszenen]
- Träumerei [Kinderszenen]
- Menuet BWV Anh.114 [Clavierbüchlein der Anna Magdalena Bach]
- Inventio 1 BWV 772
- Inventio 8 BWV 779
- Inventio 13 BWV 784
- Praeludium 1 BWV 846 [Das Wohltemperierte Klavier 1]
- Le Coucou
- Sonatina Op.36-1 1st Mov.
- Sonatine Op.20-1 1st Mov.
- Sonate K.545 1st Mov.
- Sonate K.331 3rd Mov. "Turkish March"
- Rondo K.485
- Für Elise
- Marcia alla Turca
- Sonate Op.13 "Pathëtique" 1st Mov.
- Sonate Op.13 "Pathëtique" 2nd Mov.
- Sonate Op.13 "Pathëtique" 3rd Mov.
- Sonate Op.27-2 "Moonlight" 1st Mov.
- Rhapsodie 2
- Waltz Op.39-15 (Duet)
- Liebesträume 3
- La Prière d'une Vierge
- Csikos Post
- Humoresque Op.101-7
- Melodie [Lyrische Stücke Heft 2]
- Sicilienne Op.78
- Berceuse [Dolly] (Duet)
- Arabesque 1
- La Fille aux Cheveux de Lin [Préludes]
- Passepied [Suite bergamasque]
- Gymnopédie 1
- Je Te Veux
- Salut d'Amour
- The Entertainer
- Maple Leaf Rag
- L'arabesque [25 Etüden Op.100]
- La Styrienne [25 Etüden Op.100]
- Ave Maria [25 Etüden Op.100]
- Le retour [25 Etüden Op.100]
- La chevaleresque [25 Etüden Op.100]
- No.13 [Études de Mécanisme Op.849]
- No.26 [Études de Mécanisme Op.849]