Roland Digital Piano HP504


Piano Description

Top Technologies, No-Compromise Performance

With the HP-504, Roland's latest technologies bring superior piano performance to an attractive and affordable instrument for your home. The SuperNATURAL® Piano sound engine has been enhanced with a Dynamic Harmonic feature for fortissimo playing, while the new PHA-4 Premium Keyboard with Escapement and Ivory Feel includes the latest touch-sensing technology to fully explore SuperNATURAL Piano's rich tonal variations and natural dynamics. Individual Note Voicing lets you tailor the sound of each note to your taste, and you can now enjoy the unique sound field of an acoustic piano during your private practice sessions, thanks to the innovative Headphones 3D Ambience effect. And with Roland's great iOS piano apps, it's easy to use your favorite Apple mobile devices with the HP-504 to enhance your learning and have more fun with the piano.

  • Enjoy superior sound with SuperNATURAL® Piano, which delivers the rich, complex tone of an authentic acoustic grand
  • New PHA-4 Premium Keyboard with Escapement and Ivory Feel features Roland's latest high-resolution touch-detection technology
  • Fortissimo playing styles are fully expressed with the new Dynamic Harmonic feature, which provides both a unique tonal character and powerful sound
  • Use new Individual Note Voicing to customize the sound to your taste by adjusting the pitch, volume, and character of each note independently
  • Headphones 3D Ambience effect offers a rich, immersive sound experience while using headphones for private practice
  • Free Piano Partner app for iPad includes the interactive Flash Card game for building music skills and provides an intuitive interface for selecting songs and tones in the HP-504
  • Play along with favorite songs in your iPhone, iPad, or iPod touch using the free Air Performer app
  • Large onboard song library covers piano classics, as well as popular études such as Czerny 100 and Hanon
  • Built-in recorder lets you capture your performances as MIDI or audio files (optional USB flash memory required for audio recording)
  • Convenient features for daily playing, such as independent volume for headphones, Volume Limit function, and adjustable music rest
  • Available in Simulated Rosewood or Contemporary Black finishes



88 keys (PHA-4 Premium Keyboard: with Escapement and Ivory Feel)

Touch Sensitivity

Key Touch: 5 types, fixed touch

Keyboard Mode

Whole Dual (volume balance adjustable) Split (split point adjustable) Twin Piano


Damper (Progressive Damper Action Pedal, capable of continuous detection) Soft (capable of continuous detection) Sostenuto (function assignable)

Sound Generator

Piano Sound

SuperNATURAL Piano Sound

MIDI Format

Conforms to GM2, GS, XGlite

Max. Polyphony

128 voices


Grand Piano: 14 Tones Upright Piano: 5 Tones E.Piano: 10 Tones Other: 321 Tones (including 8 drum sets, 1 SFX set)


8 types, selectable temperament key

Note Voicing

Stretched Tuning: -50.0 – +50.0 cent Note Volume: -50 – 0 Note Character: -5 – +5

Master Tuning

415.3 – 466.2 Hz (adjustable in increments of 0.1 Hz)


Key Transpose: -6 – +5 (in semitones) Playback Transpose: -6 – +5 (in semitones, including audio files)


Ambience (Off, 10 levels) Brilliance (21 levels) Only for Piano Tones: Damper Resonance (Off, 10 levels) String Resonance (Off, 10 levels) Key Off Resonance (Off, 10 levels) Cabinet Resonance (Off, 10 levels) Dynamic Harmonic (Off, 10 levels) Soundboard Behavior (Off, 10 levels) Only for Organ Tones: Rotary Speaker Effect (Slow/Fast)



Quarter note = 10 – 500


2/2, 0/4, 2/4, 3/4, 4/4, 5/4, 6/4, 7/4, 3/8, 6/8, 9/8, 12/8

SMF Recorder


3 parts

Save Song

Standard MIDI Files (Format 0)


11 levels

Note Storage

Approx. 30,000 notes


Song Select Play/Stop Rec Rewinding Fast-forwarding Top of song Part Mute Mute Volume Tempo Tempo Mute All Songs Play Count-in Song Balance AB Repeat


120 ticks per quarter note



75 – 125%



Playback Transpose: -6 – +5 (in semitones)

Playback Speed

75 – 125%

Audio Control

Song Select Play/Stop Rec Rewinding Fast-forwarding Top of song Playback Speed All Songs Play Song Balance AB Repeat Center Cancel

Internal Memory

Save Song

Standard MIDI Files (Format 0)


Max. 99 songs

External Memory

External Storage

USB Flash Memory

Playable Software

Standard MIDI Files (Format 0, 1) Roland Original Format (i-Format) Audio File (WAV, 44.1 kHz, 16-bit linear format)

Save Song

Standard MIDI Files (Format 0) Audio File (WAV, 44.1 kHz, 16-bit linear format)


Internal Songs

Piano Masterpieces: 77 songs Selection: EU= 10 songs/ US= 18 songs/ Other= 10 songs Hanon: 20 songs Czerny #100: 100 songs


16 segments x 4 and 8 characters LCD (with backlit)


English, Japanese (only Display)

Music Rest

Tilt Adjustment: 3 levels

Keyboard Lid

Slide type (with Classic Position)

Other Functions

Wireless Connect (when using optional Wireless USB Adapter) Panel Lock Auto Off V-LINK MIDI Visual Control


DC In jack Input jack: Stereo miniature phone type Output (L/Mono, R) jacks: 1/4-inch phone type USB COMPUTER port: USB Type B USB MEMORY port: USB Type A Phones jacks x 2: Stereo miniature phone type, Stereo 1/4-inch phone type

Rated Power Output

12 W

Volume Level

11 levels

Volume Level

106 dB


12 cm (4-3/4 inches) x 2


Effects: Headphones 3D Ambience


Effects: Headphones 3D Ambience

Power Consumption

8 W (5 – 32 W) 8 W: Average power consumption while piano is played with volume at center position 5 W: Power consumption immediately after power-up; nothing being played 32 W: Rated power consumption


Owner's manual Assembly manual (*1) Roland 60 Classical Piano Masterpieces AC Adaptor Power Cord (for AC Adaptor) Headphone hook Screw set (*1) *1 Supplied with the stand.