Acoustic Audio 1350W 7.1 Home Theater System w/7 Surround Sound Speakers & 12" Powered Sub 7.1 Home Theater Surround Sound Speaker System w/12" Powered Sub (4) 5.25" 2-Way Surround Speakers, (2) 8" 2-Way Surround Speakers, 3-Way Center Channel Speaker with Dual 4" Cone Woofers and 1" Dome Tweeter, & 12" Powered Subwoofer Recommended Speaker Power: (5.25" Satellites: 15 - 100 Watts Each, 8" Satellites: 15 - 150 Watts Each, Center: 15 - 150 Watts) Powered Sub: 500 Watts Output Power Subwoofer Features: 500 Watt Integrated Amplifier, Down Firing 12" Woofer, Bottom Slot Port, Low/High Level Inputs, Auto-Sensing Signal On, Adjustable Gain and LP Crossover Speaker Features: Black Ash Woodgrain Veneer Finish, Digitally Tuned Sealed Cabinet Enclosure, Video Shielded, Quick Release Speaker Terminals, Acoustically Transparent Grills, Impedance: 8 Ohm