Advent Vision Series V-3.1 Home Theater Speaker System Slim Design for use with Plasma/Flat Panel Home Theater Systems Works with V-Tower for 5.1 Surround Sound Satellites & Center Channel - 2x3" Woofers and 1" Titanium Tweeters, 15 - 75Watts Subwoofer - 8" Down-firing Long Throw Woofer in Ported Enclosure, 25 - 100 Watts Includes 2-Way Satellites (Pair), Center Channel & Powered 8" Subwoofer