Xbox Spherex 51000 6-Piece 5.1 Surround Sound System 5.1-channel surround sound system designed specifically to enhance video game audio Includes 5 satellite speakers with 3-1/2-inch woofers and 3/4-inch metal dome tweeters 100-watt 8-inch matrix cone subwoofer with MaxxBass augmentation Dolby Digital, DTS, and Dolby Pro Logic II decoding; 3 digital audio inputs, 1 analog input, and USB 1.1 port 300-watt digital DDX amplifier; 10-year limited warranty