four/six channel speakers mode is enabled.
4. Mic In is used to connect a microphone, which allows you to
input sounds and voices.
5. Center and Bass can be connected to center speaker and bass
while six channel speakers mode is enabled.
4 Channel S peakers
Speaker Out
Line In/
Rear Speaker
6 Channel S peakers
Speaker Out
Line In/
Mic In
Rear Speaker
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Mainboard Features
Mic In/ Center & Bass