Buyer be aware ! The XPS ( like it seems nearly all Dells ) uses MaxxAudio pro /waves to give an " immersive" sound experience . This can give a nice effect with the built in speakers , but it can't be fully turned off for the line/HP output. It creates distortions and arctifacts and enhances=distorts ridiculously , with loudness , spacial and treble/bass .
Uninstalling it still leave traces (like compression and other) . This is a premium machine but is uses awful 2 $ Realtek audio chips that can't even use 24bit/96K audio files or more . Sound out of this computer is certainly not great (via HP jack and even possibly USB audio) , not for audiofiles who want straight pure audio, my old XPS m1710 from 2006 is much beter! The maxxaudiowaves cr_p is not entirely deletable and parts of it are in the Realtek audio driver. Other drivers without it in , will not install. I guess for power saving the Realtek chips are inactive when no sound is played after a few seconds , you can hear a mute or chip disable click , when listening to it with a HPamp , less with a low impedance HP straight . Worst are the clicks you hear when playing systemsounds which activates the chip again. Alot of bloat ware from Dell (and it leaves a lot in the registry after uninstalling) . Only thing useful is Dell premier colour and Dell power manager . Better alone than the MyDell bloadware , where it is integrated.