Casio PX-870 Privia Digital Piano

Casio's top Privia digital piano, the PX-870 gives you room-filling grand piano sound, hammer-action keys, and USB connectivity for your computer or tablet.

The world-renowned Privia family of digital pianos grows with the Casio PX-870 Privia Digital Piano, designed to provide a true grand piano experience in a slim, modern design. With authentic piano sound, natural feel and impressive features, the Casio PX-870 is a brilliant instrument for inspiring brilliant performances.

Piano Purity

The PX-870's award-winning AiR Sound Source includes a four-layer stereo grand piano which comes alive with realistic damper resonance, simulating the entire body of the instrument, not just the strings. The piano also includes key action sounds, key off simulation, adjustable hammer response, and a lid simulator with four positions. The PX-870 also includes string resonance, which exposes the sympathetic harmonic relationships between vibrating strings. Along with adding to the subtle beauty of the sound, this adds authenticity when playing works by Debussy, Ravel, and other composers who wrote with string resonance in mind.
The PX-870 features a variety of 19 instrument Tones, with the ability to layer and split them as needed. With a generous 256 notes of polyphony, you can rest assured that even the most complex performances will sound perfectly natural.


The acclaimed Tri-Sensor II Scaled Hammer Action piano keys give you the expression your performance deserves. The simulated ebony and ivory textures give you an authentic and comfortable touch, combined with an innovative hammer action that is accurately scaled across read more the entire key range. Adjustable touch sensitivity and hammer response allow customization to suit any playing style.


The PX-870's innovative Sound Projection system fills the room with rich, detailed sound. This powerful 40-watt, 4-speaker system is designed to envelop the listener and audience with sound emanating from various places on the instrument, just as it would on a traditional grand piano. The Volume Sync EQ ensures that you hear a balanced, clear sound across the entire frequency range, at any listening volume.


The PX-870's convenient features are useful at home, in a lesson studio, or anywhere else. You can connect two sets of headphones using the ¼" jacks on the front panel, making the PX-870 ideal for quiet practice. A unique Headphone Mode optimizes the PX-870's sound for headphone use. Duet Mode splits the piano into two equal pitch ranges, allowing a student and teacher to sit at the same instrument.


60 songs are included in the built-in Music Library, with room for ten additional songs of your choice. You can also record your performances using the PX-870's two-track MIDI recorder.
Concert Play allows you to play along with ten recordings of well-known orchestral pieces, with the ability to either listen to the piano part or silence it so you can play it yourself. To facilitate practice, you can even slow down these recordings without affecting their pitch.


Designed to compliment any décor, the PX-870 is available in either a black or white finish. Its compact, elegant cabinet with sliding key cover adds to the beauty of any room. The easy controls are located to the left of the keys, allowing you to play without distraction.

Well Connected

The PX-870 connects via class-compliant USB to any PC, Mac, iOS, or Android device, with no drivers or installations needed.
WARNING: Cancer and Reproductive Harm -
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- Keyboard: 88 keys, Tri-sensor Scaled Hammer Action Keyboard, Simulated ebony and ivory keys, 3 sensitivity levels,

- Sound Source: Multi-dimensional Morphing AiR
- Polyphony (maximum): 256
- 19 Instrument Tones
- Simulator: Hammer Response - (4 levels), String Resonance - (4 levels), Damper Resonance - (4 levels), Lid Simulator - (4 levels), Key Action Noise - (ON / OFF), Damper Noise - (ON / OFF)
- Digital Effects: Hall Simulator / Reverb - 4 (Hall Simulator), Chorus - 4, Brilliance - (-3 ~ 0 ~ 3), DSP - (Preset for some tones)
- Songs: Concert Play - 10 songs, Controller - Start / Stop, Mode - Listen / Lesson / Play, Music Library - 60 Songs, Song Expansion (User Songs) - 10 songs (max.) Up to approximately 90 KB / song
- Additional Features: Sound Projection System, Headphone Mode, Volume Sync EQ, Connection to App, Lesson Function - Part ON / OFF, Lesson Part Select - Right hand, Left hand, MIDI Recorder - 2 tracks, 1 song, Approximate Data Capacity - Approximately 5,000 notes total, Audio Recorder / Playback - Max. 99 songs, approximately 25 min/song (44.1 kHz WAV format), Duet Mode, Octave Shift, Metronome - 0 to 9 beats; tempo range : 20 to 255, Pedals - 3 built-in pedals (damper, soft, sostenuto)
- Key Transpose: 2 octaves (-12 semitones ~ 0 ~ +12 semitones)
- Tuning Control: A4 = 415.5 Hz ~ 440.0 Hz ~ 465.9 Hz
- Number of Preset Temperaments: 17
- Others: GRAND PIANO button ・ELEC PIANO button ・Slide-type keyboard cover ・Auto Power Off: Off after approx. 4 idle hours (default setting)
- Connectivity and Storage: PHONES/OUTPUT, Connector for 3-Pedal Unit, LINE OUT, USB TO HOST, USB TO DEVICE
- Speakers Size: 12cm x 2 + 4cm x 2
- Speakers System: 2-Way, 4-Speaker
- Amplifiers: 20 W + 20 W
- Dimensions: 1,393mm -- 299mm -- 801mm
- Weight: 34.6Kg
- Included Accessories: AC Adaptor, Music Stand
Dimensions and Weight in Packaging
Shipping Weight: 91.25 lbs
Shipping Dimensions: 60 x 16 x 15 in
Manufacturer Part Number (MPN): PX-870
Blemished, Black, USED
Shipping Weight: 91.25 lbs
Shipping Dimensions: 60 x 16 x 15 in
Manufacturer Part Number (MPN): PX-870
Shipping Weight: 99.25 lbs
Shipping Dimensions: 60 x 15 x 15 in
Manufacturer Part Number (MPN): PX-870BN
Shipping Weight: 99.25 lbs
Shipping Dimensions: 60 x 15 x 15 in
Manufacturer Part Number (MPN): PX-870 WH
Blemished, White, USED
Shipping Weight: 99.25 lbs
Shipping Dimensions: 60 x 15 x 15 in
Manufacturer Part Number (MPN): PX-870 WH

For support or warranty questions, please contact the manufacturer:
Phone: 800-435-7732

Reviewers gave this product an overall rating of 5 out of 5 stars. (1 ratings)
Submitted December 21, 2018 by omie E in reno, NV
"the sound and feel"
Overall: 5 out of 5 stars
(see rating details)
Verified Customer zZounds has verified that this reviewer made a purchase from us.
I'm not going to go deep into specs, but rather, provide a more general review about the experience and product. The item was shipped fast and all parts were in order and unblemished. The box is heavy, so I recommend a second person to help you lift, or grab a handtruck.The setup was pretty easy, though i recommend a powered screwdriver. The instructions were about 20% helpful, while a youtube setup video provided the other 80%. All parts fit and setup just fine--not very complicated, but lifting the keyboard part on your own could be challenging.Once put together, the piano itself is amazing, with a true weighted key experience. The sound was fantastic from the speakers, and filled the room even at low volume. Headphones sound great, as well, for those in apartments. The key action can be somewhat audible, but that's true for most weighted key technology and is not a deal breaker.Overall, I'm more than satisfied with this piano, and every time I pass by it I have to sit down and play. Totally worth every dollar, as this is a long time keeper.Note: I have not yet tested the chordana app connectivity, but plan to do so soon with an ipad using an ipad camera adapter (usb-to-lightning)
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