Logitech Speaker System Z523 with Subwoofer Room-Filling Logitech 360-degree sound for an immersive music, movie and game experience Down-firing subwoofer with 6.5-in pressure driver delivers ultra-deep bass without distortion Quick-connect inputs let you easily plug in your DVD player, game console, iPod and headphones 40 watts (RMS) of power for big, rich, detailed sound. Convenient on-speaker controls put volume adjustment at your fingertips