MSI MS-7021 Manual page 45

n 4-Channel Mode for 4-Speaker Output
The audio jacks on the back panel always provide 2-channel analog
audio output function, however these audio jacks can be transformed
to 4- or 6- channel analog audio jacks by selecting the corresponding
multi-channel operation from No. of Speakers.
Refer to the following diagram and caption for the function of each
jack on the back panel when 4-Channel Mode is selected.
1 * Line Out (Rear channels)
2 Line Out (Front channels)
3 MIC
* Line In function is converted to
Line Out function when 4-Channel
Mode for 4-Speaker Output is
selected.
Using 4- or 6-Channel Audio Function
Back Panel
1
2
3
A-7