Sound Generator | Piano Sound | Piano Reality Modeling |
| Max. Polyphony | Piano: Limitless (solo playing using 'Piano' category tones) |
| | Other: 256 |
| Tones | Total 324 Tones |
| | Grand: 4 Tones |
| | Upright: 5 Tones |
| | Classical: 5 Tones |
| | E.Piano: 12 Tones |
| | Organ: 12 Tones |
| | Other: 286 Tones |
Ambience | Piano Reality Ambience | |
| Type | Studio, Lounge, Concert Hall, Wooden Hall, Stone Hall, Cathedral |
| Depth | 11 steps |
Keyboard | Hybrid Grand Keyboard (88 keys Hammer Action Keyboard): | with Escapement, Ebony/Ivory Feel, High Precision Sensing and Haptic Key Vibration |
Pedal | Damper | Responsive Damper Action Pedal, capable of continuous detection, Damper Modeling |
| Soft | capable of continuous detection, function assignable |
| Sostenuto | function assignable, with muffler pedal function |
Sound System | Piano Reality Projection | |
| Speakers | Cabinet Speakers: 25 cm (9-7/8 inches) x 2 (with Speaker Box) |
| | Near-field Speakers: (12 cm (4-3/4 inches) x 8 cm (3-3/16 inches)) x 2 (with Speaker Box) |
| | Center Near-field Speakers: 8cm (3-3/16 inches) x 2 |
| | Spatial Speakers: 2.5 cm (1 inch) x 2 (Dome type) |
| Rated Power Output | 33 W x 2 |
| | 21 W x 2 |
| | 13 W x 2 |
| | 14 W x 2 |
Headphones | Piano Reality Headphones Ambience | |
Cabinet | Music rest | with Music holders |
| Key cover | Fallboard type, with Keyboard Lid Switch |
Tuning, Voicing | Touch Sensitivity | Key Touch: 100 steps, fixed touch |
| | Hammer Response: Off, 10 steps |
| Master Tuning | 415.3--466.2 Hz (adjustable in increments of 0.1 Hz) |
| Temperament | 10 types (Equal, Just Major, Just Minor, Pythagorean, Kirnberger I, Kirnberger II, Kirnberger III, Meantone, Werckmeister, Arabic), selectable temperament key |
| Effects | Brilliance |
| Piano Designer | Lid |
| | Key Off Noise |
| | Hammer Noise |
| | Duplex Scale |
| | Full Scale String Resonance |
| | Key Off Resonance |
| | Cabinet Resonance |
| | Soundboard Type |
| | Damper Modeling |
| | Soft Pedal |
| | Single Note Tuning |
| | Single Note Volume |
| | Single Note Character |
Internal Songs | Total | 394 songs |
| Listening | 27 songs |
| Ensemble | 30 songs |
| Entertainment | 20 songs |
| Do Re Mi Lesson | 30 songs |
| Lesson | 287 songs (Scale, Hanon, Beyer, Burgmuller, Czerny 100) |
Data Playback | Playable Software | Standard MIDI Files (Format 0, 1) |
| | Audio File (WAV: 44.1 kHz, 16-bit linear format, MP3: 44.1 kHz, 64 kbps--320 kbps, requires USB flash drive) |
Recorder | Recordable Software | Standard MIDI Files (Format 0, 3 parts, Approx. 70,000 notes memory) |
| | Audio File (WAV: 44.1 kHz, 16-bit linear format, requires USB flash drive) |
Bluetooth | Bluetooth Ver 5.0 | |
| Profile | A2DP (Audio), GATT (MIDI over Bluetooth Low Energy) |
| CODEC | SBC (Supports SCMS-T content protection) |
Compatible Android/iOS Apps (Roland) | Roland Piano App | |
Convenient Functions | Metronome | adjustable Tempo/Beat/Downbeat/Pattern/Volume/Tone, with Rhythm Pattern: 80 patterns |
| Dual | |
| Split | |
| Twin Piano | with Individual Mode |
| Transpose | in semitones |
| Speaker volume and Headphones volume automatically select function | |
| Speaker Auto Mute | |
| Volume limit function | |
| Panel Lock | |
| Panel Off | |
| Auto Off | |
Other | Display | Graphic LCD 128 x 64 dots |
| Connectors | DC In jack |
| | Input jacks: Stereo miniature phone type |
| | Output (L/Mono, R) jacks: 1/4-inch phone type |
| | USB Computer port: USB B (compatible with USB MIDI/Audio) |
| | USB Memory port: USB A |
| | Phones jack x 2: Stereo miniature phone type, Stereo 1/4-inch phone type |
| Power Supply | AC adaptor |
| Power Consumption | Power Consumption: 65 W (when using the included AC adaptor) |
| | * Approximate power consumption when playing the piano at the center value of the volume: 25 W |
| | * Power consumption when sound has not been played after power-on: 23 W |
| | * Power consumption when in OFF mode (when the power automatically turns off): 0.2 W |
| Dimensions (With top lid closed) | 1,395 (W) x 491 (D) x 1,179 (H) mm |
| | 54-15/16 (W) x 19-3/8 (D) x 46-7/16 (H) inches |
| With top lid open: | 1,395 (W) x 502 (D) x 1,254 (H) mm |
| | 54-15/16 (W) x 19-13/16 (D) x 49-3/8 (H) inches |
| Weight | LX-9-PE、LX-9-PW: 111.0 kg/245 lbs |
| | LX-9-CH: 109.5 kg/242 lbs |
| Accessories | Owner's Manual |
| | "Roland Piano Masterpieces" |
| | Leaflet "USING THE UNIT SAFELY" |
| | AC adaptor |
| | Power cord |
| | Headphone hook |