“what besides the length of the soundbar is the difference between the Vizio SB4051 and the Vizio SB3851?”

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• SB4051 has the Flat sub-woofer SB3851 has the regular speaker box style sub-woofer

  Answered by HariHarMaharana 7 years ago

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• The SB4051 has the low profile Subwoofer that can fit under a couch or be stood on its side under an end table. The sb3851 has the more traditional cube shaped Subwoofer.

  Answered by Pearlmikejam 8 years ago

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