Logitech Z906 5.1 Surround Sound Speaker System - THX, Dolby Digital and DTS Digital Certified 5.1 digital surround sound: Hear every detail in your Dolby Digital and DTS soundtracks the way the studio intended. Sub woofer: 165 Watts THX-certified home theater speakers: Your assurance of true cinema-quality sound. Satellites : 4 x 67 W, wall mountable Delivers a continuous 500 watts of power, with the ability to deliver a peak of 1,000 watts under certain circumstances: Thunderous, room-shaking audio with deep bass you can feel Flexible setup: Connect up to six devicescomputer, music player, TV, game console and more Easy sound control: Compact control console and wireless remote let you instantly personalize your surround-sound experience System Requirements: Works with any device with either a headphone jack (3.5mm), RCA, six-channel direct, digital coaxial input or optical inputs. Signal to noise ratio, A-weighted: &gt;95dB