Asus xonar dsx User Manual page 19

5.3.2 Connecting 2/2.1 channel speakers
2 Speakers
AUDIO
INPUTS
2.1 Speakers
No Item
1 Front Out/Headphone
Jack
Description
Connect the 2/2.1 speaker set's 3.5mm plug into this Front Out jack.
ASUS Xonar DSX
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