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    Upgraded Performance - Universal Applications  

    This is where things start to get serious.
    Our upgraded automotive subwoofer enclosures are designed with performance and value in mind and created for mid to upper-level woofers.  
    Performance Plus series enclosures are available in ported variants only for subwoofers ranging from 8" to 18"

     

    Features:

     

    • Hand Built in the USA

    • Built with 3/4" APEX Composite MDF for superior density & strength

    • Double Face for 1.5" Mounting Surface for heavier woofers

    • 4-way Internal Bracing for maximizing strength and minimizing resonances

    • CAD Optimized

    • Exclusive V Port Design with clean carpet grooving
    • Increased Port Area for more efficiency
    • Increased Airspace with Lower tuning ( 30 - 34hz )

    • Interlocking Dado cut Design for incredibly strong joints

    • Precision CNC Cut utilizing state of the art ShopSabre Industrial CNCs

    • High-Quality Terminal Cup with Acrylic badging

    • Rounded External Edges Throughout including all Bracing

    • Recessed Side Panels increase structural integrity

    • Available wrapped in Upgraded Black Carpet

    Proline X - Performance Plus

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