The PX‑870 Digital Piano is a flagship 88-key console-style digital piano from Casio’s renowned Privia series that’s designed to deliver a realistic acoustic piano experience in a sleek, compact cabinet. Built with a Tri-Sensor II Scaled Hammer Action keyboard and simulated ebony/ivory key surfaces, it gives a responsive, expressive touch that closely mimics a traditional grand piano’s feel.
The PX-870’s award-winning AiR Sound Source uses a four-layer stereo grand piano tone and advanced resonance modeling — including damper and string resonance, hammer response, and lid simulation — to produce rich, nuanced sound with remarkable depth and realism. It also offers 256-note polyphony, 19 built-in tones, layer/split functions, and a powerful sound projection system with dual 20 W + 20 W amplification and four speakers that fill the room with tone.
Performance and learning features include Duet Mode, an internal library of 60 songs with room for more, a two-track MIDI recorder, concert play, metronome, and headphone-optimized modes for quiet practice. Connectivity is flexible, with USB class-compliant MIDI for integration with computers and mobile devices (no drivers required). The elegant console cabinet with sliding key cover and three-pedal unit (damper, soft, sostenuto) makes the PX-870 a versatile instrument for home, studio, or teaching environments.