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Subwoofer Empty Boxes

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    In Phase BX12XT 12" Slot Ported Subwoofer Enclosure For In Phase XT-12

    In Phase

    Elevate your car audio experience with the In Phase BX12XT Slot Ported Subwoofer Enclosure, custom-designed for the In Phase XT-12 subwoofer. Engi...

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    In Phase BX15SL 15" Sealed Subwoofer Enclosure

    In Phase

    Choosing a bass box can be hard as not many people sell them and ideally they need to be built by people who know subwoofer parameters, box design ...

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    In Phase BX15PL 15" Slot Ported Subwoofer Enclosure

    In Phase

    Choosing a bass box can be hard as not many people sell them and ideally they need to be built by people who know subwoofer parameters, box design ...

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