[arch-general] Muting internal speakers

Since the change from Win 7 to Arch there is just one function I really miss up to now. Perhaps someone of you can help me out. Is it possible that Arch deactivates the internal speakers of my laptop when I plug in my USB-headset and turn input / output to this ? In Windows I could define the USB headset as default for in-/output so Win made a fallback to internal speakers only when I plugged out the headset again. It would be really great if Arch was that comfortable too. I know in GNOME there are just two clicks to do for switching to another audio hardware but ... :D Warm regards, Nelson.