
Do not set the impedance much higher as it may damage the headphones. Headphones AMP (impedance) options are only available when Analog Out is set to Headphone. In ASUS Audio Center click the Hammer icon to select a different output impedance. In XonarSwitch this is available under Headphones Gain. I'm not aware of an option to control the output impedance being available in C-Media Panel. The effects will increase the DPC latency, which in turn could cause other problems like audio/video desynchronization or slow network/internet speed. They also change the sound not always in a good way, you might like it for your music but it might harm the audio positioning in games.

You can read more on the impact of sound effects to DPC latency here. Windows Vista/7/8/10: Setting the Windows audio playback to 24 bit will slightly improve audio quality.Open Windows Sound (right-click on Windows Volume tray icon-> Sounds or if missing type in Windows search: "change system sounds "), select Playback tab, double click your default playback device (for example Speakers ASUS Xonar Audio Device), go to Advanced tab and in the Default format entry select 0 Hz (studio quality) as shown in this picture. You can find detailed information on audio bit-depth here.


Windows Vista/7/8/10: Set Line In and Microphone Default Format to "2 channel, 24 bit, 44100 Hz (studio quality)". Having the bit-depth set to 24 bit will slightly improve the recording quality. To do so open Windows Sound (right-click on Windows Volume tray icon-> Sounds or if missing type in Windows search: "change system sounds "), go to Recording tab, select Microphone or Line In (ASUS Xonar.) and click "Set Default" button in order to have access to it's advanced settings, then double click it, go to Advanced tab and in the "Default Format" entry select 2 channel, 24 bit, 44100 Hz (studio quality) as shown in this picture. #Xonar dg audio center xear 3d ds3d windows# #Xonar dg audio center xear 3d ds3d windows#.
