Sound Generator
Piano Sound
Piano Sound: SuperNATURAL Piano Modeling
Max. Polyphony
Piano: Limitless (solo playing using ‘Piano’ category tones)
Other: 384
Tones
Total 324 Tones
Keyboard
Keyboard
PHA-50 Keyboard: Wood and Plastic Hybrid Structure, with Escapement and Ebony/Ivory Feel (88 keys)
Pedal
Pedal
Progressive Damper Action Pedal (Damper pedal: capable of continuous detection, Soft pedal: capable of continuous detection/function assignable, Sostenuto pedal: function assignable)
Speaker System
Speaker System
Acoustic Projection
Speakers
Cabinet + Near-field Speakers: 12 + 2.5 cm (5 + 1 inches) x 2 (Coaxial Speaker)
Spatial Speakers: 5 cm (2 inches) x 2
Rated Power Output
25 W x 2
5 W x 2
Headphones
Headphones
Effect: Headphones 3D Ambience
Tuning, Voicing
Touch Sensitivity
Key Touch: 100 types, fixed touch
Hammer Response: 10 types
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, Ambience
Piano Designer
Lid
Key Off Noise
Hammer Noise
Duplex Scale
Full Scale String Resonance
Damper Resonance
Key Off Resonance
Cabinet Resonance
Soundboard Type
Damper Noise
Single Note Tuning
Single Note Volume
Single Note Character
Internal Songs
Internal Songs
US: Total 392 songs
Other: Total 382 songs
Listening: 15 songs
Ensemble: 30 songs
Entertainment: 20 songs
Easy Piano: 10 songs (US only)
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 Memory)
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 Memory)
Bluetooth
Bluetooth
Audio: Bluetooth Ver 3.0 (Supports SCMS-T content protection)
MIDI: Bluetooth Ver 4.0
Compatible Android / iOS Apps (Roland)
Compatible Android / iOS Apps (Roland)
Roland Piano App
Piano Designer
Convenient Functions
Convenient Functions
Metronome (adjustable Tempo/Beat/Down beat/Pattern/Volume/Tone)
Registration
Dual
Split
TwinPiano (with Individual Mode)
Transpose (in semitones)
Speaker volume and Headphones volume automatically select function
Volume limit function
Panel Lock
Auto Off
Cabinet
Cabinet
Music rest: Tilt Adjustable (3 levels), with Music holders
Key cover: Slide type, with Keyboard Lid Switch and Classic Position
Other
Display
Graphic OLED 128 x 32 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 type
USB Memory port: USB A type
Phones jack x 2: Stereo miniature phone type, Stereo 1/4-inch phone type
Power Supply
AC adaptor
Power Consumption
13W (12W–30W)
Accessories
Owner's Manual
Leaflet “USING THE UNIT SAFELY”
The collection of scores "Roland Piano Masterpieces"
AC adaptor
Power cord
Headphone hook
Option (sold separately)
Headphones
Size (including piano stand, with music rest)
Width
1,377 mm
54-1/4 inches
Depth
468 mm
18-7/16 inches
Height
1,113 mm
43-7/8 inches
Size (including piano stand, when folding down the music rest)
Width
1,377 mm
54-1/4 inches
Depth
468 mm
18-7/16 inches
Height
957 mm
37-11/16 inches
Weight (including piano stand)
HP704-PE
61.0 kg
134 lbs 8 oz
HP704-CH, HP704-DR, HP704-LA, HP704-WH
59.5 kg
131 lbs 3 oz
 
 

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