5.1 Surround Sound vs 7.1 Surround Sound - Difference and Comparison

5.1 Surround Sound vs 7.1 Surround Sound comparison. A 5.1 surround sound system uses 6 channels (feeding into 6 speakers) to create surround sound. 7.1 surround sound systems use 8 channels. The two extra channels of sound (and two extra speakers) provide a slightly better audio quality. Setup 5.1 surround

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