Optisound TV is a powerful subwoofer that combines with your existing TV speakers to enhance your viewing experience for movies, sports, games & TV programmes. Just one single unit! Amplifier built in & no ugly speakers or wiring on show. The new way to upgrade your TV to a surround sound system without the hassle or expense of 5.1. As bass is not directional it appears that there is sound being produced in areas of the room other than just the TV, creating an immersive surround sound experience. Analogue RCA & optical digital input means that connection to any TV set is a simple plug & play matter which means that any device connected to the TV is output through the subwoofer. It is also possible to connect the TV 5 Digital to a single device if you prefer to use the subwoofer only for a specific device such as a Blu Ray player. The TV5 version has a top peak performance of 800 watts.