Surround sound is an effective way to enrich the overall quality of sound reproduction of your audio source. It uses a range of techniques to achieve this through the use of additional, discrete speakers and subwoofers.

For example, when sitting in the cinema watching a film, surround sound lets an audience watch the sequence on screen and hear the sound of the action all around them, as if they were actually in the movie. Multi-channel surround sound applications encircle the viewer, rather than relying solely on audio distributed through the speakers at the front of the cinema.

The different specifications of surround sound (5.1, 7.1) basically refer to the number of speakers/subwoofers in a room. For example, 5.1 surround sound consists of five speakers and one subwoofer (two speakers and one subwoofer at the front, one in the centre and two behind), 7.2 surround sound consists of seven speakers and two subwoofers, and so forth.