"Altec Lansing ADA-995 is a Lucasfilm THX certified 5.1 channel speaker system. Each satellite features a 3-inch full range driver and 1.5-inch tweeter. The subwoofer produces rich deep bass with two 6.5-inch long throw drivers in a ported enclosure. Overall, this system delivers over 200 watts of continuous power at an impressive 115dB. This is by far the ultimate audio system for any computer and it brings true cinema sound to your PC. Installation is a breeze with all the satellites connecting directly to the subwoofer. "
THX 5.1
100watt sub
20x5 surround
and they sound as good as my Bose did before I sold them