Ask any Halo player:

aural cues are just as important as visual ones. Unleashing the surround-sound capability of your game console will add an extra dimension to your gameplay.

Maximize your game collection.

The stereo sound you're hearing from your TV's puny speakers represents only a fraction of a game's audio potential. Many games especially those for Xbox--are encoded with a soundtrack that directs specific sounds to each speaker in a surround-audio system.

Surround sound actually means fewer wires.

Everybody's seen a standard analog stereo-audio connection--the red and white RCA jacks. But one of the great advantages of surround sound is that it only requires one wire: the PS2 and Xbox use a single optical digital audio cable.