Logitech X-530 5.1 Speaker System 5.1-Channel speaker system for PCs, Macs, audio receivers, DVD players, or game consoles FDD2 satellite technology produces uniform sound field for rich results Dedicated center channel enhances dialogue Master volume and subwoofer level controls for convenient access 70 Watts RMS total system power (7.4 watts x 4, plus 15.5-watt center speaker and 25-watt subwoofer)