The Casio Privia PX-870 delivers a refined grand piano experience, capturing the depth, nuance, and expressive character of world-class concert instruments in a modern digital form. Designed for discerning pianists, it brings authentic acoustic realism and dynamic responsiveness into a beautifully crafted home instrument that inspires every performance.
Keyboard
Number of Keys: 88
Key Action: Tri-sensor Scaled Hammer Action Keyboard II
Key Surface Finish: Simulated ebony and ivory keys
Touch Sensitivity: 3 sensitivity levels, off
Tones
Sound Source: Multi-dimensional Morphing AiR
Polyphony [Maximum]: 256 [Audio player occupies 2]
Number of Built-in Tones: 19
Stereo-Sampled Piano Tones: Yes
Layer: Yes [Excluding bass tones]
Split: Yes [Low-range bass tones only]
Simulator
Hammer Response: Yes [4 levels]
String Resonance: Yes [4 levels]
Damper Resonance: Yes [4 levels]
Lid Simulator: Yes [4 levels]
Key Off Simulator: Yes
Key Action Noise: Yes [On/Off]
Damper Noise: Yes [On/Off]
Digital Effects
Hall Simulator: 4
Chorus: 4
Brilliance: Yes [-3 ~ 0 ~ +3]
DSP: Yes [Preset for some tones]
Songs
Concert Play: 10 songs
Concert Play Controller: Start/Stop
Concert Play Mode: Listen/Lesson/Play
Music Library [Number of Built-in Songs]: 60
Song Expansion [User Songs]: 10 songs [Max.]. Up to approximately 90 KB/song
Recording Functions
MIDI Recorder: 2 Tracks, 1 Song
Approx Data Capacity: Approx 5,000 notes total
Audio Recording / Playback: Max. 99 songs, 25 min/song [44.1kHz WAV Format]
Additional Features
Sound Projection: Yes
Headphone Mode: Yes
Volume Sync EQ: Yes
Connection to Chordana Play App: Yes
Lesson Function: Part ON/OFF
Lesson Part Select: Right Hand, Left Hand
Duet Mode: Yes
Octave Shift: ± 2 Octaves
Metronome: 0 to 9 beats; tempo range 20 to 255
Pedals: Built-in 3 pedals [Damper, Soft, Sostenuto]
Half-Damper Pedal Operation: Yes [Seamless Recognition]
Key Transpose: 2 Octaves [-12 semitones ~ 0 ~ +12 semitones]
Tuning Control: A4 = 415.5Hz ~ 440.0Hz ~ 465.9Hz
Scale Function | Number of Preset Temperaments: Equal Temperament + 16 Variations
Operation Lock: Yes
GRAND PIANO button: Yes
ELEC PIANO 1 button: Yes
Slide-type Keyboard Cover: Yes
Auto Power Off: Yes [Default approx after 4 idle hours]
Connectivity and Storage
PHONES/OUTPUT: 2 [Stereo standard jack]
Connector for 3-Pedal Unit: Yes
USB to Host: Yes
USB to Device: Yes
Speakers and Amplifiers
Speakers: 12 cm x 2, 4 cm x 2
2-way, 4-speakers: Yes
Amplifier: 20W + 20W
Size
Dimensions [W x D x H]: 1393 x 299 x 801 mm [w/o music stand]
Weight: 34.3 kg [w/o music stand]
Accessories
AC Adaptor: Included
Music Stand: Included
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