The NUX NPK-20 is our latest powerful portable digital piano. Building off the sound and feel of our bestselling NPK-10, 

the NPK-20 further optimizes the acclaimed NUX WKJ-03 keyboard and makes it feel even more natural. 

Fully loaded with 271 high-quality sounds in 7 groups, the NPK-20 is also equipped with an automatic accompaniment function for dynamic performances,

 professional effects based on advanced audio processing technology, and even a dynamic mic input for a perfect performance solution.

The Grand Piano Feel Within Reach

The NPK-20 uses our WKJ-03 Triple-Sensor Graded Hammer-Action Weighted Keyboard (with escapement and synthetic ivory and ebony keytops), and has further optimized its key touch curves and sound design. More professional processing has been made for its key touch in terms of downforce, rebound recognition, legato recognition, etc. The sense of escapement and the balance of the black and white keys are also more even. Moreover, the NPK-20 has added a key noise reduction design. Ultimately, it meets all kinds of playing and performance needs, and restores the real touch of a grand acoustic piano.

A Dynamic and Rich Sound

Providing an accurate and truly grand piano sound can be a tall order. We achieved this for the NPK-20 by sampling a delicate and expressive German nine-foot grand piano. We didn’t stop at just one sound, as the NPK-20 includes a total of 271 high-quality sounds, divided into 7 groups on the top panel. All the sounds have been carefully processed and optimized resulting in a sound selection that is both powerful and rich. The sounds can be chosen or layered intuitively on the panel, such as the sound of piano layered with the ambient sound of orchestra.

A Microphone Input and Reverb – Perfect for Playing and Singing

A perfect solution for the performing singer/songwriter in you. Simply connect a dynamic microphone to the MIC input with adjustable gain control. 

Finally, adjust the on-board reverb effect for the microphone to make your performance come alive!

Professional Effects and EQ

The NPK-20 includes professional effects, including 4 types of reverb (hall, plate, room, studio), 4 types of compressor (soft, R&B, lyric piano, standard piano), chorus, and delay. You can freely combine different effects, set your own parameters and recall them at any time.

Reverb: Pre-Delay, Size, Reverb Time, Diffusion, Output Level

Compressor: Ratio, Attack, Release, Threshold, Boost

Chorus: HPF, LPF, Depth, Level

Delay: Time Del, Feedback, H Damp, Level

Also included is a 9-band EQ. You can create and adjust the EQ settings perfect for your performing to your environment and devices 

(amplifiers, headphones, built-in speakers, etc.), store and recall them at any time.

Auto Accompaniment – A One-Man Band

Our included Auto Accompaniment feature enables you to control a variety of different styles of bands using single/multi-fingered chords. You can choose A/B variations and add intros and endings, resulting in professional sounding live performances. When you deactivate the Auto Chord, the accompaniment styles become a drum machine, giving your performances even more possibilities!

Bluetooth Audio & MIDI

If you want to stream music from your mobile device to the NPK-20, simply connect via Bluetooth Audio. Also, you can connect the NPK-20 to educational APPs via Bluetooth MIDI. And the NPK-20 comes with a free APP, Piano Mate, which provides a variety of sheet music. It’s compatible with other 3rd party APPs as well.

Dual Sounds & Dual Keyboard

You can layer sounds, octave shift for the whole keyboard or split the keyboard to 2 sections and change their sounds and octave separately.

Flexible Connectivity & More Functions

The NPK-20 also provides Aux In, Line Out (L/MONO, R), USB MIDI, 2 Headphones Outputs, Damper Pedal Jack, and Pedal-Unit Jack, 

perfect for various performance applications.

The NPK-20 also provides handy workflow functions. There are 7 user preset slots, convenient for you to quickly save and recall all the sounds and parameters. You can also practice with the built-in metronome which has 3 sounds for you to choose from.

perfect for various performance applications.

Chic and Unique Design

A 4″ 800×480 dpi full-color LCD, stylish control panel, and slim design. Whether you’re practicing at home, band busking on the street, or livestreaming your performance, the NUX NPK-20 is perfect for your performance and inspiration.



  • 88-key NUX WKJ-03 Keyboard (*upgraded)
  • Triple-sensor scaled hammer-action weighted keyboard (with escapement and synthetic ebony/ivory keytops)
  • Touch Sensitivity: 5 levels

Sounds and Effects

  • Sounds: 271 high-quality sounds (7 groups)
  • Tone Brilliance: 5 levels
  • Layered Sounds: Yes (mix balance adjustable)
  • Split Keyboard: Yes (split point adjustable; individual octave shift and tone selection)
  • Max. Polyphony: 108
  • Compressor: 4 types (soft, R&B, lyric piano, standard piano), 5 parameters (ratio, attack, release, threshold, boost)
  • Reverb: 4 types (hall, plate, room, studio), 5 parameters (pre-delay, size, reverb time, diffusion, output level)
  • Chorus: 4 parameters (HPF, LPF, depth, level)
  • Delay: 4 parameters (time del, feedback, H damp, level)
  • Equalizer: 9-band

Accompaniment and Microphone

  • Microphone: dynamic microphone input (XLR & 6.35mm combo jack), gain control, volume, reverb
  • Auto-Accompaniment: 100 styles (auto chord, single/multi fingering, sync start, A/B variations, intro/ending)


  • Transpose: -6 to +5 in semitones
  • Octave Shift: -1 to +1 octaves
  • Demo Songs: 100
  • Metronome: 9 beats, 3 sounds, 20-280bpm
  • Recording: 5 songs
  • User Presets: 7 memory banks
  • Bluetooth: Bluetooth MIDI, Bluetooth Audio

Connectivity and Speakers

  • USB MIDI, AUX IN, LINE OUT (L/MONO, R), 3.5mm Stereo Phones Output x 2, Damper Pedal (included), Pedal Unit (optional), Microphone Input
  • Amplifiers and Speakers: 10W x 2, 3″x6″ oval speaker x 2
  • Display: TFT LCD 800x480dpi

Connectivity and Speakers

  • DC 12V/2A

Size and Weight

  • Dimensions: 1300mm x 270mm x 130mm
  • Weight: 12.2kg (music stand included)

*Note: Piano stand is not included.