Concrete Audio Ported Trunk Subwoofer Enclosure – 12″ Single Ported Box

Bring deeper, more powerful bass to your vehicle with the Ported Trunk Subwoofer Enclosure from Concrete Audio. This ported (bass-reflex) enclosure is engineered to house a single 12″ subwoofer, with both the sub and port firing backward toward the cabin — ideal for trunk installations where space and performance matter.

Constructed from 3/4″ birch wood for strong, resonant-free acoustics, this enclosure also features oxygen-free copper wire screw-in terminal cups for secure connections and poly fill to help smooth internal resonance and improve bass quality. Its rugged build makes it a great choice for custom audio systems and installations where impactful low-end output is key.

Key Features:

• Designed for 1 × 12″ subwoofer

• Ported (bass-reflex) design for enhanced low bass output

• 3/4″ birch wood construction for acoustic strength

• Oxygen-free copper wire screw-in terminal cups

• Poly fill for smooth resonance and improved performance

• Ideal for: car trunks, SUVs, custom audio installations

• Both sub and port fire back for deeper, room-filled bass