SOYO SY-KT400 Dragon Ultra User Manual page 173

Speakers and Microphone Connection
Before running this demo program to feeling the C-Media's
Sound Banquet, you have to connect the speakers and the
microphone to the correct phone jacks.
JP1/JP2
Note: Some 5.1 speaker have different center/base assignment.
Please use the C-media Multi-Channel Audio demo software to
check if sounds coming from the center/base speaker are
correct. If not, short pin 2-3 of JP1 and JP2.
How to Enable 4/ 5/ 5.1 Speakers
You have to activate the "Mixer" program and click "Advanced" button.
Then you can open speakers page and selected "4-Speaker", "5
Speakers", or "5.1 Speakers" mode to let the audio driver recognize
your rear or
front/rear/center/subwoofer speakers work. The audio driver will
activate the audio chip to output different sounds from the
front/rear/center/subwoofer speakers based on different playback
formats. For more information, please refer to the "9 C-Media Power
Mixer".
center/subwoofer
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speakers, and have the