NUX WK-400 Smart Digital Piano
Owner's Manual
Safety Guidelines
Before using this unit, please carefully read the "SAFETY PRECAUTIONS". After reading, please keep the manual where it will be available for future reference.
⚠️ WARNING
In case of getting seriously injured or killed because of electric shock, short circuit, damage, fire or other dangers, please obey the following warnings. These warnings include but not limited to the following situations:
Power/Electric Cable
- The rated voltage of this device is fixed. The required voltage is printed on the nameplate of this device.
- Check the plug regularly, clean the dirt and ash piled up on the plug.
- This digital piano only matches with the provided power cable and plug.
- Please don't put electric cable beside heaters or radiators. Don't bend too much or cause damage to electric cable. Don't put any heavy stuff on the wire. Don't put it where it may be run over or trampled to make people stumble.
Do Not Open
- Please do not open this device and try to dismantle inner components or transform it in any ways. This device does not include any components for users to fix. If you find any problems, please stop using and ask qualified NUX service staffs to examine and repair the device.
Warning about humidity
- In case of any liquid splashing into the device, please do not get this device rained or use it nearby water, in a wet surrounding or put a container of liquid on it. If any liquid, like water, splashes into the instrument, please cut off power and pull out the electric cable from the AC socket immediately. Then ask qualified NUX service staffs to examine and repair the device.
- Do not plug with wet hands.
Fire
- Do not place any burning stuff, like candle, on the instrument. It may cause fire.
- When sensing any unusual situations, such as worn away and damage of power cable, sound suddenly stops during playing and the smell and smoke it causes, please turn off the power immediately and pull out plug from the socket. Ask qualified NUX service staffs to examine and repair the device.
⚠️ Attention
In case that people around you and you get injured or get loss of device and property, please obey the following basic instructions. These instructions include but not limited to following situations:
Power/Electric Cable
- When pulling out plug from socket, please grab the plug instead of power cable. Drawing directly will cause damage to the power cable.
- If not using the instruments for a long time or during a lighting storm, please pull out plug from the socket.
- Do not connect the instrument to the socket by multiple connector, or it will lower the sound quality, or it will make socket overheat.
Assemble & Use
- Please carefully read the attachment that explains the assemble process. If assembling the instrument in a wrong order, it will damage the instrument and hurt the user.
- Please connect the external equipment while the digital piano is off.
Mount Position
- Before using, please install the supporting screw and adjust it close to the ground, in case of trampling pedal.
- In case of deformation of control panel and damage to inner components, please do not place this device in an environment with a lot of dirt, vibration, extreme cold and hot (such as, direct sunshine, closing to heater and inside a car under the burning sun).
- Please do not use this device near the television, radio, stereo, cell phone or other electronic devices. This may make noise on the device itself and television or radio nearby.
- Please do not put this device on unstable place, or it may cause a sudden fall down.
- Before moving the device, please pull out all electric cables from the socket.
- When you set this device, please confirm the AC socket going to be used is reachable. The device should be connected to the socket with protecting grounding connection. If you find any problems and questions, please immediately turn off the power and pull out the plug from the socket. Even though the power is turned off, there is still a small amount of electricity current flowing though it. If you decide not using this device for a long time, please pull out the plug from AC socket.
- This product uses all extreme power switch as a device to cut off from network power. The power switch button is on the right side of the keyboard. When the power button is pressed, it is switched on. When the power button up rises, it is switched off.
Note: The graphic and screen in this handbook is only for introduction purpose. It may be different from the instrument you buy.
Quick Installation Guide
Assembly Components List
- Headphone Hook (Quantity: 1)
- Main Body (Quantity: 1)
- Left Side Board (Quantity: 1)
- Right Side Board (Quantity: 1)
- Pedal (Quantity: 1)
- Back Board (Quantity: 1)
- Machine Screw (Quantity: 8)
- Short Machine Screw (Quantity: 2)
- Tapping Screw (Quantity: 6)
Mounting Components
- Mount left side board, right side board and pedal. Use 2 long machine screws to affix the Pedal to the left-side board and the right-side board.
- Mount back board. Use machine screws to fix the back board. Use tapping screws to fix the back board. Use 2 short machine screws and 4 tapping screws to affix the back board to the stands.
- Mount main body. Use machine screws to fix the main body. Use 4 long machine screws to affix the main body onto the stands.
- Mount headphone hook. Use 1 tapping screw to affix the headphone hook to the main body.
5. Installation complete.
Thank you for choosing NUX Digital Piano. No matter you are a student, piano hobbyist or a professional player, this digital piano will impress you with its perfect sound and fashion design. It can be competent with piano studying, music listening, MIDI production, which satisfies your entertainment demand. It also has grand hammer dynamics keyboard, making you express yourself easily.
For further information about this new digital piano, we suggest you should read this hand book carefully in order to make full use of its advanced and convenient functions. Meanwhile, we also suggest you should keep this hand book well for reference in the future.
If you like NUX digital piano, please recommend NUX to your friends.
Control Panel and Connections
Control Panel
Front Control Panel: Features buttons for AUDIO OUT/IN, PHONES, PEDAL, PLAY/STOP, RECORD, FUNCTION, DATA/VELOCITY, BEAT, DEMO, SOUND, VOLUME +/-, and POWER (ON/OFF). Model: WK-400.
Back Panel Interface: Includes NUX DIGITAL PIANO branding, website (www.nuxaudio.com), CE, RoHS marks. Power specifications: DC12V 2A, 24W. Serial Number (SN) and Made in China are also indicated.
Power Supply
Connect to a power adapter (DC 12V, 2000mA).
USB MIDI Jack
Connect the computer to the USB MIDI Jack in the back panel to get MIDI Production Function.
INPUT R/L Jacks
Connect the external instrument/audio device to the built-in speaker system.
OUTPUT R/L Jacks
Connect the digital piano to a peripheral speaker system.
Headphone Jack
Standard stereo headphone jack (6.35mm). The built-in speaker system is invalid when this jack is connected. Adjust the headphone volume by turning the [MASTER VOLUME] knob.
Pedal Jack
Connect the pedal cable to this jack.
Pedal Descriptions
- Sostenuto Pedal: Use this pedal to sustain. Holding down this pedal, even if your fingers aren't touch any keys, will sustain your notes.
- Sustaining Pedal: When you step down on this pedal, the notes you play will continue to produce sounds.
- Sordine: This makes the sound soft pedal.
Before You Play
Power On
Connect the plug to a proper socket and then press the [POWER] button on the left side of the keyboard to turn on the power. The default sound is grand piano.
Volume Control
To adjust the master volume, please use the volume control buttons on the control panel.
Performance Features
Headphone Connection
Apart from the built-in speaker system, you can also connect a standard stereo headphone (6.35mm). The headphone jack is on the backboard of the piano. The built-in speaker system doesn't work after connecting the headphone. Adjust the headphone volume by turning the [MASTER VOLUME] knob.
Sound Control
The default tone of WK-400(B) is grand piano (No. 000). USE [DATA/SPEED ▼/▲] buttons to select tones. (The complete tone lists is in the appendix). When you select other tone, press [SOUND] button and the digital piano will return to grand piano tone immediately.
Function Control
As a user-friendly instrument, all functions in this digital piano can be activated easily. Every function is corresponding to a key.
Function Activation: Press [FUNCTION] button, the indicator light turns on and function selection is activated. Press a key within 5 seconds to select corresponding function. Press [FUNCTION] button again or wait for 5 seconds without any operation, the indicator light will turn off and exit function setting status. Now you can play the digital piano according to the chosen function mode.
NOTE: Under the status of function setting, key pressing is soundless.
Dynamic Curve
This digital piano has 4 dynamic curves, which are soft, standard, hard, dynamic on/off. Press [FUNCTION] button and the indicator light turns on. Press corresponding dynamic key within 5 seconds to activate dynamic function. The default dynamic curve is standard.
Transposition
This function can transpose a note to move up or down by 12 semitones within one octave range. Press [FUNCTION] button and indicator light turns on. Press [TRANS-POSITION+/-] key within 5 seconds to adjust pitch. Adjusting range: -12 to +12. Press [FUNCTION] button again or wait for 5 seconds without any operation, the indicator light will turn off and transposition select function turns off.
Advanced Functions
Dual Keyboard
This function can divide the keyboard into two individual playing zones.
Split Keyboard
Before pressing [SPLIT] key, select sound for the left keyboard. Press [FUNCTION] button, the indicator light turns on, press [SPLIT] key within 5 seconds to enter split status. The keyboard is divided into two individual zones. The split point is F4. Select sound for the right side keyboard by [DATA/SPEED ▼/▲] buttons.
Dual Voice
When this function is turned on, playing one note can have two voices. Press [FUNCTION] button, indicator light turns on. Press [DUAL VOICE] key within 5 seconds to enter dual voice status. Select 2nd sound by [DATA/SPEED ▼/▲] button. 1st sound should be adjusted before entering dual voice status.
Keyboard Percussion
Press [FUNCTION] button and the indicator light turns on. Press [PERCUSSION ON] key within 5 seconds to activate keyboard percussion. Press [FUNCTION] button and the indicator light turns on. Press [PERCUSSION OFF] key within 5 seconds to turn off keyboard percussion function. The digital piano will return to the original sound.
Reverb
Press [FUNCTION] button and the indicator light turns on. Press [REVERB ON] key within 5 seconds to activate reverb function and sound will have reverb effect. Press [FUNCTION] button and the indicator light turns on. Press [REVERB OFF] key within 5 seconds to turn off reverb effect. (The default setting is off.)
Chorus
Press [FUNCTION] button and the indicator light turns on. Press [CHORUS] key within 5 seconds to activate chorus function and sound will have chorus effect. Press [FUNCTION] button and the indicator light turns on. Press [CHORUS OFF] key within 5 seconds to turn off chorus function. (The default setting is off.)
NOTE: All the settings will not be saved after power off. It will return to default setting when power on again.
Practicing Tools
Metronome
- Press [BEAT] button. The indicator light turns on and the metronome function is activated. The default velocity is 120bpm.
- Press [DATA/SPEED ▼/▲] button to set velocity: 20-280bpm.
- Press [BEAT] button again to exit metronome function. The current setting will be saved.
NOTE: The velocity will be back to the default value after restarting the digital piano.
Beat
This digital piano has six kinds of beats, which are 1,2,3, 4,5,6. Press [FUNCTION] button and the indicator light turns on. Press corresponding key within 5 seconds to set beat. Press [FUNCTION] button again or wait for 5 seconds without any operation, the indicator light turns off, the beat is set.
Recording Function
- Press [PLAY/STOP] and [FUNCTION] keys simultaneously. The button light indicates the beginning of the recording. Simultaneously open the beat and metronome automatically, if not need to be manually closed.
- Press [PLAY/STOP] button and the recording ends.
Demo Songs
Play demo Songs: There are 52 demo songs totally. Press [DATA/SPEED▼/▲] two buttons together to start to play. Press [DATA/SPEED▼/▲] two buttons together again to stop playing.
Select Demo Song: During the playing status, press [DATA/SPEED ▼/▲] button to select corresponding song.
App Integration and Connectivity
Using the APP
WK-400 is compatible with the APP "Piano Mate" for iOS and Android. "Piano Mate" has a collection of onboard sheet music, and makes practicing and teaching more convenient.
Scan the QR code and download the app corresponding to the mobile device you are using.
After installing the "Piano Mate" on your mobile device, you can register and open the sheet music. Then connect your mobile device to the WK-400 via a USB data cable.
USB MIDI Function
Connect the computer to the USB MIDI Jack in the back panel to get MIDI Production Function.
Audio Connection
Audio Input:
Connect the musical instrument to the built-in speaker system, regarding the digital piano as speaker.
Output:
Connect the digital piano to the external speaker system, regarding it as sound source.
Specifications and Sound List
Specification
- Appearance: Simple and vertical
- Veneer: White PVC/ black PVC
- Keyboard: 88 Grand Piano Keys scaled hammer action keyboard with four dynamic curves.
- Sound Module: Equipped with high-end DREAM DSP chip, Grand Piano tone: 5-level dynamic of stereo sampling from top concert grand piano.
- Sound: 128 + 1 standard percussion kit
- Polyphony: 80
- Demo Song: 52 demo songs.
- Metronome: Tick sound, Beat: 1,2,3,4,5,6.
- Tempo Range: 20~280bpm.
- Function Option: Pitch Shift, Split Keyboard, Dual Voice, Dynamic on/off, Chorus, Reverb, Percussion Sound
- Dynamic Curve: 4 (Soft, Standard, Hard, Off)
- Octave Shifting: 25 octaves (0, ±12)
- Split Keyboard: Dual Piano, Piano Duet, String Quartet, Concert Band, Piano + Violin, Guitar + Violin.
- Pedal: Soft Pedal(left), Damper Pedal (middle), Sustain Pedal(right)
- Jack: USB-MIDI, Pedal Jack, Power Jack, Stereo Input&Output(2 in, 2 out), Earphone Jack.
- Speaker: 2X4.5" FR Speaker, 10 Watt each
- Power Supply: DC12V, 2A, Positive Pin
- Weight: 46Kg
- Dimension: 1370(L) x 420(W) x 820(H)mm
* All specifications are subject to change without notice
Sound List
The digital piano offers a wide range of instrument sounds and effects, categorized as follows:
- PIANO: PIANO GRO, PIANO BRITE, PIANO ELEC, HONKY-TONK, E PIANO1, E PIANO2, HARPSCRD
- BASS: CLAVI, GLOCK, GLOCKNSPL, MUSIC BOX, VIBRAPHONE, MARIMBA, XYLOPHONE, TUBULR BELLS, DULCIMER
- ORGAN: HAMND ORG, PERC ORG, ROCK ORG, CHURCH ORG, REED ORG, ACCORDN 1, HARMONICA, ACCORDN 2
- GUITAR: GTR NYLON, GTR STEEL, GTR JAZZ, GTR CLEAN, GTR MUTED, GTR OVRDRV, GTR DISTRT, GTR HRMNX
- STRING: VIOLIN, VIOLA, CELLO, CONTRABASS, STR TREM, STR PIZZ, HARP, TIMPANI
- CONCERT: STRINGS 1, STRINGS 2, STR SYN 1
- SYNTH VOICE: NEW AGE, WARM PAD, POLY SYNTH, CHOIR PAD, BOW GLASS, METAL PAD, HALO PAD, SWEEP
- SYNTH EFFECT: RAIN FX, SNDTRK FX, CRYSTAL FX, ATMOSPH FX, BRIGHT FX, GOBLIN FX, ECHO FX, SCI-FI FX
- SYNTH PIPE: WHISTLE, OCARINA, SQR WAVE, SAW TOOTH, CALLIOPE, CHIFF, CHARANG, VOICE LEAD, 5THLEAD, BASS LEAD
- FOLK SOUND: SITAR, BANJO, SHAMISEN, KOTO, KALIMBA, BAGPIPE, FIDDLE, SHANAI
- PERCUSSION: TINKLE BELL, AGOGO, STEEL DRM, WOODBLK, TAIKO DRM, MLDY TOM, SYNTH DRM, REVRS CYM
- EFFECT: GTR NOISE, BREATH, SEASHORE, BIRD TWEET, TELEPHONE, HELICOPTER, APPLAUSE, GUNSHOT
Troubleshooting
| Trouble | Possible Reason/Solution |
|---|---|
| The digital piano will puff when it is switched on. | Don't worry. This is normal. |
| Pressing key makes no sound after the power is on. | Please confirm whether the master volume button is set properly or confirm whether the headphone jack is linked to other devices, which will automatically cut off the built-in speaker system. |
| Notes have different quality under the same sound. | This is normal because different sound sampling ranges make different sound quality. |
| In pedal sustain function, some sound sustains longer, others shorter. | This is normal. The tenuto of different sounds of this digital piano has been set to optimized length. |
| The sound is too small. | Please confirm whether the master volume button is set properly. |
| Some MIDI Data can not be transmitted correctly (Even the MIDI cable is linked correctly). | This is normal. It is related to the original setting. |
| The speaker will make noise when cell phone is nearby. | The cell phone will jam when it is nearby. The cell phone should be turned off or keep the cell phone away from the digital piano to avoid the jam. |
| The pitch doesn't match with key actual place while playing. | Maybe the double keyboard function or transposition function is turned on. Turn off double keyboard or reset transposition to zero can solve the problem. |
| The sound can not be changed while playing. The pitch doesn't match with key actual place. | Maybe the double keyboard function is turned on and the split point is set to the highest pitch. Turn off double keyboard function and set split point to original status can solve the problem. |
| The demo song distorts or interrupts. | Maybe it has been playing in maximum power for a long time so that the circuit board self-protection system is activated in case of overheat. Turn down the volume or turn off power for a while can solve the problem. |
| There are two sounds at the same time while playing. | Maybe you turn on dual voice function. Turn off dual voice function can solve the problem. |
| The tone's pitch is wrong. | Set scale and tones or set temperament parameter values to zero. |
| No automatic accompaniment chord. | Confirm whether accompaniment volume or chord function is turned on. |
| Dynamics is different from before. | This digital piano has four dynamics, light, standard, heavy, off. Maybe you have chosen different dynamics. You can choose the dynamics again according to your demand or reset it. |
