Audio Output

When I try to play back an MP3 file, the output keep defaulting to the Audiobox USB I have connected to my desktop running Window 7. How can I change this so that it defaults to the speakers I have connected. Thanks.

For Audacity, just select the output that you want to use in the device toolbar.
For other applications, Right-click over the Speaker icon by the system clock, choose Playback Devices, then right-click over the speakers or headphones device you want to use, choose “Set as Default Device” and click “OK”.