Asus AP1720-E1 - Manual (Page 109)

ASUS PC-DL Deluxe motherboard 5-7
5.3 SoundMAX ® 4 XL software
The ADI AD1985 AC ‘97 audio CODEC provides 6-channel audio
capability through the SoundMAX4 XL with AudioESP™ software to
deliver the ultimate audio experience on your PC. The software
implements high quality audio synthesis/rendering, 3D sound positioning,
and advanced voice-input technologies.
Follow the installation wizard install the AD1985 Audio Driver and
Application from the support CD that came with the motherboard
package to activate the 6-channel audio feature.
You must use 4-channel or 6-channel speakers for this setup.
SoundMAX 4 XL requires Microsoft Winodws 98SE/ME/2000/XP. Make
sure that one of these operating systems is installed before installing
SoundMAX.
If the SoundMAX4 XL software is correctly installed,
you will find the SoundMAX4 XL icon on the
taskbar.
From the taskbar, double-click on the SoundMAX4
XL icon to display the SoundMAX Control Panel.
SoundMAX4 XL icon