There is no option to disable sub-woofer in XPS system.
You can change equalizer settings in audio application in the system tray.
Below are the steps on how to change audio settings.
1: On Windows 7 systems, click Start --> Dell Audio--> Dell Audio on Windows 8 systems, type Dell Audio from the Start Screen, and select Dell Audio utility.
Dell Audio by Realtek utility is launched.
2: You may change the desired settings from the different tabs available on the utility.
Thanks and Regards,
RE: Disabling Dell XPS SubWoofer
I am also facing same issue. Do you have any solution to disable JBL subwoofer. I think this is happening after upgrading to Windows 10.
Problem statement: Is there a way to disable Dell XPS Sub Woofer, sometimes, when the sound is high, the woofer starts bursting, so just wanted to know if there is way to turn it off temporarily ?