Casio PX870BK Privia 88 Key Digital Piano - Black

  • Our Price
  • $949.00
  • Regular price MSRP: $1,499.99

• Inventory changes daily and this item may be out of stock
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Get Unheard-Of Realism With The Casio PX870BK Privia 88 Key Digital Piano - Black

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.

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.

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.

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.

Hall Simulator- 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.

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)
  • Included Accessories: AC Adaptor (AD-E24250LW), Music Stand


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

Maximum Polyphony: 256

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

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)


  • [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
  • Headphone Mode
  • 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)
  • Duet Mode
  • 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

Manufacturer: Casio
Model: PX-870BK
Warranty: See manufacturer website for details
SKU: I493873-0