Digital Piano

The Supreme Piano for Stage Performance

  • USB
  • GM2
  • V-LINK


RD-300NXPlease check the latest RD-300NX featuring an advanced SuperNATURAL Piano sound engine, E.Piano sounds based on SuperNATURAL technology, a newly developed Ivory Feel-G keyboard with Escapement, a unique Sound Focus feature, and more!

The Supreme Piano for Stage Performance

Step onstage and step up to the world’s most impressive stage pianos, with amazing pianos and EPs onboard, plus audio-play and master control features. The RD-300GX is powered by Roland’s latest sound engine for incredible sound quality.


  • - Stunning 88-key stereo multi-sampled piano sounds
  • - Highly portable stage piano, equipped with PHA alpha II 88-key weighted keyboard which provides the excellent touch.
  • - Audio playback of WAV, AIFF, and MP3 files via USB memory; easy onstage control with Audio Key feature
  • - Piano Designer function for creating the perfect custom instruments
  • - Multiple zones for master-control functionality
Relevant product

Perfect Piano

The RD-300GX features two sets of 88-key stereo multisampled pianos sounds from the popular RD-700SX. In addition to their super-expressive onboard piano sound-sets, other essential instruments are built into these new pianos, including EPs. You can even customize and save your sounds for instant recall.

Perfect Touch

The RD-300GX features an excellent PHA alpha II weighted keyboard, which simulates a real grand piano by providing a heavier touch in the lower octaves that gets increasingly lighter in the upper range. This keyboard has many of the same design elements as Roland’s acclaimed PHA II keyboard, but its keyboard-action mechanism is much more compact and lightweight.

USB Audio Enhancement

Play audio through the RD-300GX directly from a USB memory key. Flexible file compatibility enables playback of Standard MIDI Files, WAV, AIFF and MP3s. The "Audio Key" feature lets you use the bottom 15 keys for controlling start song, song length, etc. In addition, you can connect directly to a PC via USB and tap into Cakewalk SONAR LE software, included in every RD-300GX package.

Custom Shop

For those who like to get inside an instrument and customize its sounds, the RD-300GX’s Piano Designer feature is your key to unlocking and personalizing the sound-set, down to the smallest details such as Hammer Noise, Damper Resonance, Duplex Scale, and more.

High-Quality Effects

For subtle sweetening or complete transformation, the RD-300GX offers a wide lineup of 78 multi-effect types to choose from, plus independent effects such as reverb, 2-band digital EQ, and Sound Control. Add sparkle to your grand piano sound, deep-fry an electric piano, add depth and spatial movement to strings ― the choices are vast.

Lightweight, Compact

It has an impressive, heavy-duty body (with sophisticated black brushed metal finish) but the RD-300GX is actually one of the lightest 88-note piano in its class. It’s ultra easy to transport at about 36 pounds (16.4 kg), — yet built tough enough for the rigors of the road.


88 keys (PHA alpha II Keyboard)

Sound Generator

Conforms to General MIDI 2 System
88-key Stereo Multi-sampled Piano Sound
Maximum Polyphony
128 voices
Wave Memory
128 MB (16-bit linear equivalent)
Normal Tones: 110
General MIDI 2 Tones: 256
Rhythm Sets: 5
General MIDI 2 Rhythm Sets: 9
Multi-Effects: 78 types
Reverb: 6 types
Sound Control
2-band Digital Equalizer

SMF/Audio File Player

File Format
Standard MIDI File: format-0/1, Audio File: WAV, AIFF (44.1 kHz, 16-bit linear), MP3
*Audio File can be played with Audio Key Function.


Output Jacks (L/MONO, R): 1/4 inch phone type, DAMPER Pedal, Control Pedal, MIDI (IN, OUT), USB (MIDI, Memory), Headphones Jack: Stereo 1/4 inch phone type, DC IN Jack


Rhythm Pattern
200 patterns
16 characters, 2 lines (Backlit LCD)
Zone Level slider x 3 (Assignable), Equalizer knobs, Pitch Bend/Modulation lever, Assignable Switches (S1, S2)
Internal Memory
1M bytes
Power Supply
DC 9V (AC adaptor)
Power Consumption
11 W
Owner's Manual, Audio Key Utility 2 Quick Guide, CD-ROM (Audio Key Utility 2, SONAR LE), Damper Pedal, AC Adaptor, Power Cord

Size and Weight

Width (W)
1,438 mm56-5/8 inches
Depth (D)
337 mm13-5/16 inches
Height (H)
141 mm5-9/16 inches
16.4 kg36 lbs. 3 oz.

All specifications and appearances are subject to change.


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