SoundSource is a simple application for Mac OS X, enabling you to switch your audio input and output sources with a single click. It resides in your menu bar as a cute little pair of headphones, providing instant access to Input, Output and System device and volume settings, as well as a quick way to get to the full Sound Preference Pane.
With SoundSource, you can quickly change from one input or output device to another - it's great for DJs and other music professionals. Home users may also like the ability to route system sounds such as error beeps to secondary hardware.
By any means necessary....