PX-870

A NEW DESIGN AND SOUND AUTHENTICITY ROLLED INTO ONE

The top-of-the-range PRIVIA model combines all of the achievements of CASIOs AiR technology into one new compact design.

DIVERSE CONCERT GRAND PIANO TONES

The PX-870 has a completely new sound projection feature for improved natural sound emission. The nuanced damper and string resonance simulation provides a realistic concert grand piano experience. Additional features, such as the lid position simulator, Volume Sync EQ, headphone mode EQ and the audio recording function make this CASIO instrument a compact marvel of functionality and acoustics. The Concert Play function also allows the pianist to practise and play the piano part with an orchestral accompaniment.

Colour variations

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Keyboard
Number of keys 88 88 88 88 88 88
Number of sensors 3 2 + "Note Off" Algorithm 2 + "Note Off" Algorithm 3 3 3
Action Tri-sensor Scaled Hammer Action Keyboard II Smart Scaled Hammer Action Keyboard Smart Scaled Hammer Action Keyboard Tri-sensor Scaled Hammer Action Keyboard II Tri-sensor Scaled Hammer Action Keyboard II Tri-sensor Scaled Hammer Action Keyboard II
Key surface finish Simulated ebony and ivory keys Simulated ebony and ivory keys Simulated ebony and ivory keys Simulated ebony and ivory keys Simulated ebony and ivory keys Simulated ebony and ivory keys
Touch sensitivity 3 sensitivity levels 5 sensitivity levels, off 5 sensitivity levels, off 3 sensitivity levels 3 sensitivity levels, off 3 sensitivity levels, off
Hammer response 4 levels, off
Sound source
Type Multi-dimentional Mophing AiR Multi-dimentional Mophing AiR Multi-dimentional Mophing AiR Multi-dimentional Mophing AiR Multi-dimentional Mophing AiR Multi-dimentional Mophing AiR
Polyphony 256 192 192 128 256 256
Damper resonance 4 levels, off 4 levels, off 4 levels, off
15 levels, off
String resonance 4 levels, off 4 levels, off 4 levels, off
15 levels, off
Aliquot resonance
Open string resonance
Damper noise
4 levels, off 4 levels, off
15 levels, off
Pedal action noise
Key on action noise
Key off action noise
Lid simulator 4 types
DSP effect
Tones
Number of built-in tones 19 700 18 19 370 + 350 user sounds 650
Number of piano tones 6 24 8 6 19 16
Number of Hex Layer tones
50 Preset: 100 / User: 100
Direct tone select buttons 2
2 2 8 via the sound groups 1
Layer
Split
Rhythms
Number of built-in rhythms
200
220
User rhythms
30
Digital effects
Hall simulator / reverb 4 types Hall simulator (4 types) Reverb (8 types) Surround (2 types) Hall simulator (4 types) Surround (2 types) 4 types
17 types
Chorus 4 types 12 types 4 types 4 types
16 types
Brilliance 7 levels (-3~0~3) 7 levels (-3~0~3) 7 levels (-3~0~3) 7 levels (-3~0~3)
Digital signal processor Preset for some tones 100 presets, editable Preset for some tones Preset for some tones 20 20 presets, editable
EQ
In DSP
4 band EQ 4 band EQ
Sound system
Top board open or closed
Volume Sync EQ
Headphone Mode
Songs
Number of Concert Play preset songs 10
10
Number of Music Library songs 60
60 60
Music Library user area 10 10 10 10 10
Part on / off function
Demo songs
6 1
4 6
Functions
Works with Chordana Play For Piano app
Bluetooth Audio
User registrations
96
100 96
Built in music presets
310
305
User music presets
100
One Touch presets
200
200
Duet function
Arpeggiator
100
100 100
Pitch bend wheel
Controller
2 knobs
4 knobs, 6 sliders, Modulation Wheel 3 knobs
MIDI recorder 1 song, 2 tracks 5 songs, 3 tracks 1 song, 2 tracks 1 song, 2 tracks 10 songs, 1000 phrases 100 songs, 17 tracks
Audio record/play Max. 99 songs maximum, approximately 25 min./song (To USB flash drive, 44.1 kHz Stereo WAV format) Max. 99 songs maximum, approximately 25 min./song (To USB flash drive, 44.1 kHz Stereo WAV format)
Max. 100 songs maximum, approximately 25 min./song (To USB flash drive, 44.1 kHz Stereo WAV format) Max. 100 songs maximum, approximately 74 min./song (To USB flash drive, 44.1 kHz Stereo WAV format)
Metronome
Octave shift
Key transpose 2 octaves (-12 semitones ~ 0 ~ +12 semitones) 2 octaves (-12 semitones ~ 0 ~ +12 semitones) 2 octaves (-12 semitones ~ 0 ~ +12 semitones) 2 octaves (-12 semitones ~ 0 ~ +12 semitones) 2 octaves (-12 semitones ~ 0 ~ +12 semitones) 2 octaves (-12 semitones ~ 0 ~ +12 semitones)
Tuning control A4 = 415.5Hz ~ 440.0Hz ~ 465.9Hz A4 = 415.5Hz ~ 440.0Hz ~ 465.9Hz A4 = 415.5Hz ~ 440.0Hz ~ 465.9Hz A4 = 415.5Hz ~ 440.0Hz ~ 465.9Hz A4 = 415.5Hz ~ 440.0Hz ~ 465.9Hz A4 = 415.5Hz ~ 440.0Hz ~ 465.9Hz
Number of preset zemperaments 17 17 17 17 17 17
Operation lock
Display
5.3 inch touch panel (TFT color LCD)
Pedals
Pedal system included Damper, soft, sostenuto The portable SP-3 pedal is included The portable SP-3 pedal is included Damper, soft, sostenuto The portable SP-3 pedal is included The portable SP-3 pedal is included
Damper pedal jack (extra)
Assignable Assignable
2 x Damper + Assignable
Expression pedal jack
Extra connector for the optional 3-pedal unit
Optional for SP-34 Optional for SP-34
 
Half damper pedal effect Continuous recognition With the optional SP-34 3-pedal unit With the optional SP-34 3-pedal unit
Half pedal position
Inputs / outputs
Headphone Stereo standard jack x 2 Stereo mini jacks x 2 Stereo mini jacks 2 Stereo standard jack x 2 Stereo standard jack Stereo mini jacks x 2
LINE OUT
LINE IN
AUDIO IN
Stereo mini jack Stereo mini jack
Stereo mini jack Stereo mini jack
5pin MIDI
USB TO HOST (MIDI)
USB TO DEVICE
Power
Power supply optional with batteries
6 AA-size alkaline batteries 6 AA-size alkaline batteries
8 AA-size alkaline batteries
AC adaptor AD-E24250LW AD-A12150LW AD-A12150LW AD-A12150LW AD-A12150LW AD-A12150LW
Power consumption 20 W 15 W 10 W 18 W 5 W 10 W
Auto power off
Speaker System
Speakers 12 cm x 2 + 4 cm x 2 2-ways, 4-speakers 16 cm x 8 cm (oval) x 2 2 speakers 16 cm x 8 cm (oval) x 2 2 speakers 12 cm x 2 2-ways
12 cm x 2 + 5 cm x 2 4 speakers
Amplifier 20 W + 20 W 8 W + 8 W 8 W + 8 W 8 W + 8 W
8 W + 8 W
Unit size
Dimensions 1,393 × 299 × 801 mm (w/o music stand) 1,322 × 232 × 102 mm (w/o music stand) 1,322 × 232 × 102 mm (w/o music stand) 1,391 x 299 x 798 mm (w/o music stand) 1,322 × 286 × 135 mm (w/o music stand) 1,322 × 293 × 147 mm (w/o music stand)
Weight 34,3 kg 11,4 kg 11,2 kg 31,5 kg 11,1 kg 12 kg
Color / finish
Type Black, brown, white Black Black, white, red Black, brown, white White Blue
Included accessories
Music stand
Score book PDF
PDF PDF
AC Adaptor
Headphone hook
Single foot pedal
SP-3 SP-3
SP-3 SP-3

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