LAB SlapBox™ Vented MDF Box Enclosure for Sundown Audio SA-Class / SA-Series V.2 15” Subwoofer (3.50 ft³ @ 35Hz)

LAB SlapBox™ Vented MDF Box Enclosure for Sundown Audio SA-Class / SA-Series V.2 15” Subwoofer (3.50 ft³ @ 35Hz)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 woofers T S parameters to deliver deep, accurate, and hard hitting bass. Tuned between 3234Hz depending on application, these boxes strike a powerful balance of SPL and SQgiving you loud, clean sound without

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