5.1 channel surround sound:
5.1 is the most popular surround sound used. In the diagram shown above we show using two sub woofers which is referred to as 5.2.
Premium Audio recommends using two subwoofers instead of only one.
See subwoofers for why we feel so strongly about this.
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Click the image to enlarge it.
Refer to home theatre diagrams for even more surround sound possibilities!