ProLine X - Professional Series Subwoofer Enclosures: Where Maximum Performance Meets Sophisticated Design

Discover unparalleled bass with the ProLine X - Professional Series Subwoofer Enclosures, where cutting-edge design meets sonic excellence. Engineered for mid to high-end subwoofers, these enclosures redefine your audio experience with unmatched power and precision.

Key Features

  • Hand Built in the USA: Each ProLine X enclosure represents the pinnacle of American craftsmanship, meticulously hand-assembled in the USA, symbolizing your commitment to superior quality.
  • MDF Construction: These enclosures are built from premium 3/4" MDF and offer lasting durability and optimal acoustics.
  • 1.5" Face: The 1.5" thick Woofer Mounting Panel enhances enclosure rigidity, significantly reducing critical mounting surface panel flex.
  • Extensive Internal Bracing: The internal bracing system is designed to be rigid, reduce vibration, and preserve sound integrity.
  • Rounded EdgesAll internal and external edges are rounded for a clean, sophisticated appearance.
  • CAD Optimized Design: Computer-aided design guarantees optimal performance for each enclosure, further enhanced by our recommended subsonic filter settings.
  • Interlocking Architecture: Dado and biscuit construction techniques provide a unique interlocking design, enhancing stability and easing assembly by securely locking each component in place.
  • Precision CNC Cut: CNC-guided precision ensures every cut is accurate, yielding a snug fit and exceptional finish.
  • Larger Terminal Cup: A high-quality terminal cup accommodates ten gauge wires, ensuring optimal signal integrity.
  • Premium Carpet Finishing:  The enclosure is wrapped in black plush carpet, enhancing its aesthetic while promoting durability.
  • Ultra-Low Tuning: Tuned between 28-34 HZ, our enclosures deliver exceptionally low and resonant bass.
  • Continual Model Updates: New models, meticulously refined, are added weekly, broadening our selection.
  • Custom Branding: We offer brand and personal branding options, including "Level 2" upgraded acrylic inserts for customization.

Why Choose ProLine X?

ProLine X enclosures, meticulously crafted with attention to detail, are not mere boxes but thrones for your subwoofers. They are designed to support even the heaviest units and optimize your audio investment.


Elevate your bass to legendary status with ProLine X - Professional Series Subwoofer Enclosures. Unlock unparalleled bass and elevate your audio journey. Choose ProLine X for a sound that reverberates through your very being, providing a stage worthy of your performance.

Order yours today and redefine your auditory experience.

We currently have active designs for the following Brands:

  • Alpine
  • Rockford Fosgate
  • Skar Audio
  • Kicker
  • JL Audio
  • Audiomobile
  • Sony
  • Sundown Audio
  • Memphis Audio
  • DD Audio
  • Deaf Bonce
  • PowerBass
  • DC Audio
  • Ground Zero
  • Arc Audio
  • Focal


If you don't see your subwoofer brand listed and want us to build you a Professional Series Subwoofer Enclosure, email us. Let us build something cool for you.



ProLine X - Professional Series Subwoofer Enclosures


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