User Manual
Getting Ready
EN-55
You can connect audio equipment or a music amplifier 
to the Digital Piano and then play through external 
speakers for more powerful volume and better sound 
quality.
IMPORTANT!
• Whenever connecting a device to the Digital Piano, 
first use the VOLUME controller to set the volume to 
a low level. After connecting, you can adjust the 
volume to the level you want.
• Whenever you connect any device to the Digital 
Piano, be sure to read the user documentation that 
comes with the device.
Connecting Audio Equipment (Figure )
Use commercially available connecting cords 
(Standard Plug × 1, Pin Plugs × 2) to connect as shown 
in Figure . Make sure that the end of the cord that 
you connect to the Digital Piano is a stereo standard 
plug. A monaural standard plug will result in output of 
only one of the two stereo channels. Normally, you 
should set the input selector of the audio equipment to 
the terminal where the Digital Piano is connected 
(AUX IN, etc.) Adjust volume using the Digital Piano’s 
VOLUME controller.
Connecting a Music Amplifier (Figure )
Connect the connecting cord* to one of the types of 
amplifiers shown in Figure .
Adjust volume using the Digital Piano’s VOLUME 
controller.
NOTE
• Change the Head Phone Mode setting to OFF 
whenever the Digital Piano is connected to an audio 
system or amplifier.
Use only accessories that are specified for use with this 
Digital Piano.
Use of unauthorized accessories creates the risk of fire, 
electric shock, and personal injury.
NOTE
• You can get information about accessories that are 
sold separately for this product from the CASIO 
catalog available from your retailer, and from the 
CASIO website at the following URL.
http://world.casio.com/
Connecting Audio Equipment 
or an Amplifier
* Digital Piano: Stereo standard plug
Amplifier : Inputs signals for the left and right 
channels. Not connecting either plug 
will result in output of only one of the 
two stereo channels.
INPUT 1
INPUT 2
Audio amplifier AUX IN jack, etc.
Guitar amplifier
Keyboard amplifier, etc.
Pin plug
Pin jack Standard plug
RIGHT (Red)
To either of the Digital Piano’s PHONES/OUTPUT jack
Stereo standard plug
Pin plug (red)
Pin plug (white)
LEFT (White)
Bundled and Optional 
Accessories










