“Is this speaker a free air subwoofer or does it need a box”

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• Hello Weyman, the Polk Audio MM842 DVC is intended for installation in a box enclosure. I included the recommended dimensions for both sealed and ported enclosures. -Sealed Box Volume: Polk recommends a sealed enclosure between 1.25 ft³ and 3.5 ft³. -Ported Box Volume: Polk recommends a ported enclosure between 1.75 ft³ and 2.25 ft³. Regards, Polk Audio

  Answered by Polk Audio 2 weeks ago

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