Asus M2N-SLI - Manual (Page 126)

5-18 Chapter 5: Software support
7.1 Virtual Speaker Shifter
Click to enable this function.
Click to adjust the
volume.
Click to arrange the
position of the virtual
speakers.
Click to reset the
speaker positions.
Click to effect the
settings and exit.
Mixer
The Mixer option allows you to configure audio output/input (record) volume.
Click the control tab and turn the volume button to adjust the output volume.
Make adjustments to Wave, SW Synth, Microphone, CD Player, Line Lin, and
Stereo Mix by clicking the control tabs and dragging the sliders up and down to get
the desired volume levels.
Click OK to effect the settings and exit.