The Roland HP-704 is an advanced digital piano featuring SuperNATURAL Piano Modeling, the PHA-50 hybrid keyboard, and a four-speaker Acoustic Projection system for an authentic piano-playing experience.
With 324 tones, unlimited piano polyphony, Bluetooth Audio/MIDI, Headphones 3D Ambience, and Roland Piano app compatibility, it is a strong choice for both serious study and advanced home performance.
The HP-704 series is available in White, Charcoal Black, Dark Rosewood, Light Oak, and Polished Ebony finishes.
| Specification | Value |
|---|---|
| Brand | Roland |
| Model | HP-704 |
| Product Type | Digital Piano |
| Keyboard | PHA-50 Hybrid Keyboard |
| Number of Keys | 88 |
| Key Surface | Ebony / Ivory Feel |
| Escapement | Yes |
| Pedals | Damper, Soft, Sostenuto |
| Pedal System | Progressive Damper Action |
| Sound Engine | SuperNATURAL Piano Modeling |
| Polyphony | Piano: Unlimited / Other: 384 Notes |
| Total Tones | 324 |
| Speaker System | Acoustic Projection |
| Speaker Configuration | 4 Speakers |
| Speakers | 12 cm + 2.5 cm x 2, 5 cm x 2 |
| Amplifier Power | 25W x 2 + 5W x 2 |
| Headphone Effect | Headphones 3D Ambience |
| Touch Sensitivity | 100 Types + Fixed |
| Hammer Response | 10 Types |
| Master Tuning | 415.3 – 466.2 Hz |
| Ambience / Brilliance | Yes |
| Piano Designer | Yes |
| Dual / Split / Twin Piano | Yes |
| Built-in Songs | 382 |
| Lesson Songs | 287 |
| Recording | MIDI and WAV |
| Bluetooth Audio | Yes |
| Bluetooth MIDI | Yes |
| App Support | Roland Piano App, Piano Designer |
| Display | Graphic OLED 128 x 32 |
| Headphone Outputs | 2 |
| USB Computer | USB Type-B |
| USB Memory | USB Type-A |
| Audio Input | Yes |
| Audio Output | L/Mono, R |
| Power Consumption | 13W |
| Width | 1377 mm |
| Depth | 468 mm |
| Height | 1113 mm |
| Weight | 59.5 kg |
| Weight (Polished Ebony) | 61 kg |
