Concrete Audio Ported Subwoofer Enclosure – 2×12″ Birch Wood Trunk Box

Get deep, powerful bass with the Ported Subwoofer Enclosure from Concrete Audio. Built to house two 12″ subwoofers with both the subwoofer and port firing toward the rear of your vehicle, this ported (bass-reflex) enclosure delivers louder, more resonant low-frequency output — ideal for trunk installations and high-impact audio systems.

Made from 3/4″ birch wood with rounded port edges and a 1.5″ baffle for optimized airflow, this rugged box also includes oxygen-free copper wire screw-in terminal cups for secure connections, poly fill to smooth internal resonance, and a black trunk liner for durability and a finished look. With spacious internal volume and pro-grade construction, this enclosure is perfect for custom builds, pro audio installs, and performance car audio setups.

Key Features:

• Designed for 2 × 12″ subwoofers

• Ported (bass-reflex) design for deep, powerful bass

• 3/4″ birch wood construction for rigidity and strength

• Rounded port edges and 1.5″ baffle for optimized airflow

• Oxygen-free copper wire screw-in terminal cups

• Poly fill for improved sound quality

• Black trunk liner for durability and aesthetic finish

• Ideal for car & truck trunk installations

• Dimensions: 14″ H × 36″ L × 25″ W