USB speaker as "internal audio"?

["Dr. Jennifer Nussbaum" <bg271828@yahoo.com>]

Hi, Im running Debian testing with XFCE, and PulseAudio as my sound system.

I currently have a pair of cheap speakers plugged into the "sound out" on my computer, and then two different USB speakers for higher-quality stuff.

I want to get a pair of small USB speakers as my "main" desktop speakers. Is there a way to tell the system to use these speakers as my "internal audio" device? I want to be able to hear system sounds etc. thru these speakers. Right now if I unplug the normal "sound out" speakers, i get no system sounds at all, nothing goes automatically to either of the USB speakers. In the PulseAudio volume control, the "system sounds" just has a volume slider, it doesn't let you choose an output device.

Thanks!