MILLENIA CT - Built in 3-channel Ultra Class D amplifier: 40 watts RMS x 2 satellite speakers, 80 watts RMS subwoofer. System Peak Power of 480 watts. Our Millenia CT is a high-performance design inspired by the award-winning Paradigm Reference MilleniaOne speakers, winners of Sound & Vision'sProduct of the Year. It's a fully powered audio/multimedia system, no receiver required! Perfect for Apple TV and Other A/V Applications Simply pair Millenia CT with a wireless streaming device, such as the AppleTV or Apple AirPort Express, and instantly enjoy amazing sound quality without a complicated setup. The high-performance subwoofer offers convenient placement options—stand it up, lay it down or hide it under a couch and experience deep, powerful bass. Multiple Applications While the Millenia CT is designed perfectly to integrate with Apple TV, there are many other applications—hook it up the a computer, gaming system, directly from your TV, cable box, or any other wireless streaming music or video system that has an audio output.