Product Description

LAB OEM-Spec™ Subwoofer Enclosures – Factory Precision. Aftermarket Build.
Exclusively for JL Audio subwoofers, we offer our LAB OEM-Spec™ line of subwoofer boxes. Using JL Audio's specific box designs, these enclosures are built employing the same quality construction as our SlapBox™ utilizing solid 3/4" CNC-cut high-grade MDF (medium density fiberboard). JL Audio's enclosure designs use less airspace—which increases power handling and allows for a smaller footprint.

OEM-Spec™ subwoofer enclosures are currently available for most JL Audio subwoofer drivers in both sealed and ported designs. Smaller size, increased power handling, and JL Audio's own box design make the OEM-Spec™ enclosure a solid choice.

• 🔧 Precision Fit
  Designed using JL Audio's official airspace and layout specs to ensure perfect tuning and subwoofer performance.
• 🔊 Sealed for Accuracy
  With 0.65 cu. ft. of internal volume, this sealed design delivers tight, controlled bass and smooth roll-off.
• 🛠️ Built to Last
  CNC-cut from 3/4" MDF and wrapped in black automotive carpet—built tough for clean installs and real-world use.
• 🚗 OEM Look. LAB Sound.
  Slim profile ideal for shallow-mount setups or compact builds where accuracy and airspace matter.

📦 Features

• Sealed enclosure designed for a single 12" JL Audio TW1 subwoofer
• Built using JL Audio's recommended sealed box design (compatible with 12TW1-2 / 12TW1-4)
• 0.65 cu. ft. internal volume (net)
• Precision-cut 3/4" high-grade MDF construction
• Wrapped in premium black automotive-grade carpet
• Standard speaker terminal
• Proudly made in California, U.S.A.

📊 Technical Specifications

• Enclosure volume: 0.65 ft³ (net internal)
• F3: 45.83Hz
• Fc: 55.99Hz
• Qtc: 0.92
• Subwoofer cutout diameter: 11.0625" (11-1/16")
• External dimensions: 26.5" W x 14" H x 5.5" D