Logitech Z906 5.1 Surround Sound Speaker System
While this is one of the most expensive options on the market for 5.1 computer speakers, the power and audio quality of this system is hard to argue with. They are 500 watt RMS speakers with peak power of 1000 watts, which means you get a ton of volume out of them, and the subwoofer provides plenty of bass for music and movies. With THX-certified 5.1 surround sound, you'll be able to hear all the action and enemies around you while gaming, which is especially advantageous when playing against other people online.
You can connect up to six different devices to these speakers simultaneously and switch between them using the control center which includes volume and other controls, making this a perfect computer and multimedia setup. There's even a remote control you can use to adjust the volume and other settings wirelessly. These include solid materials including metal mesh covers, and Logitech covers this model with a two-year warranty.