“What is the difference between the 2.1 channel and the 3.1 channel sound bar?”

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• The third channel is for center channel. It make a difference in the way you hear dialog.

  Answered by AVFAV 8 years ago

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• The 3.1 sound bar features 3 speakers plus a subwoofer while the 2.1 features 2 speakers and a subwoofer.

  Answered by CommunityAnswer 9 years ago

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