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LAB SlapBox™ 3.50 ft^3 Ported MDF Enclosure Box for Single Sundown Audio SA-15 Subwoofer

$399.99

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SKU: SB-SUNDOWNAUDIO-SA15Categories: LAB SlapBox™
Description

LAB SlapBox™ Series – Engineered to Slap. Built to Last.
Designed for subwoofer enthusiasts who want to blend raw output with musical precision, the LAB SlapBox™ is our flagship performance enclosure. Every SlapBox™ is optimized around a specific woofer’s T/S parameters to deliver deep, accurate, and hard-hitting bass. Tuned between 32–34Hz depending on application, these boxes strike a powerful balance of SPL and SQ—giving you loud, clean sound without sacrificing low-end extension. Constructed from CNC-cut MDF, sealed with industrial-grade adhesives, and finished in black automotive carpet, this enclosure is as tough as it is tuned. Built to move air. Built to Slap.


  • Driver-Specific Precision
    Designed specifically for the Sundown Audio SA-15 series subwoofer using the driver’s exact T/S specs to achieve peak response and balance.
  • Tuned to Perform
    This enclosure features 3.50 cu. ft. of internal volume (net) and is tuned to 35Hz for a blend of power, low-end depth, and tight control.
  • Built to Slap
    Constructed from CNC-cut 3/4" MDF with a reinforced 1" front baffle and sealed with industrial-grade adhesive for maximum rigidity and durability.
  • Clean Look. Serious Output.
    Finished in premium black automotive carpet, this box looks as good as it sounds—perfect for daily builds or competition-grade installs.

Features
  • Ported enclosure for a single 15" Sundown Audio SA subwoofer
  • Optimized for SA-15D2 / SA-15D4 models
  • 3.50 cu. ft. internal volume (net), tuned to 35Hz
  • Precision-cut 3/4" MDF with reinforced 1" front baffle
  • Wrapped in high-grade black automotive carpet
  • Heavy-duty speaker terminal
  • Proudly made in California, U.S.A.

Technical Specifications
  • Enclosure volume: 3.50 ft³ (net internal)
  • Peak tuning frequency: 35Hz
  • Port size: 16.50" x 3.25"
  • Subwoofer cutout diameter: 14.125" (14-1/8")
  • External dimensions: 32" W x 18" H x 18" D
Shipping & Delivery

Free shipping applies to orders $50 and over shipped within the 48 Contiguous U.S. States. Most orders ship the same or next business day. Tracking is included and will be updated upon shipment.

Additional shipping fees are required for all other locations (including but not limited to): PO Boxes, APO/FPO address, AK, HI, PR, Guam, Canada, and other countries outside the USA

We will make every attempt to process and ship orders within 2 business days of your cleared payment. We will contact you, should there be a problem or delay with your order. Please allow proper delivery time for your package to arrive.

Orders via UPS Ground arrive within 2-6 business days. Smaller or lighter weight items typically ship via USPS First Class or USPS Priority Mail.