Proline X - Performance Plus

Proline X - Performance Plus

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"




  • 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 Single 12
ProLine X Performance Plus Single 12" Ported Enclosure


  • Dimensions: 28"W x 14"H x 15.25"D
  • Cubic Feet: 1.75ft
  • Tuning Frequency: 32 Hz
  • Port Area Opening: 22.5 Square Inches
  • Woofer Cutout: 11.13"
  • Enclosure Thickness: .75"
  • Face Thickness: 1.5"
  • Depth to Brace: 7"
  • Brace Diameter (Max Magnet Diameter) : 7.5"
  • Weight: 52 lbs
  • Front Badge: Engraved Acrylic
  • Terminal Cup: Single
  • Internal Bracing: Yes, front to back and side to side

Disclaimer: The wood used for this enclosure is extremely dense and requires predrilling of the mounting holes for woofer mounting.


$ 339.99

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