Built tough to handle heavy mechanical stress, this sealed enclosure uses 3/4″ MDF at the baffle face. Every interior seam is silicone sealed for airtight performance. The box holds a true 0.75 cu.ft. net volume after accounting for panel displacement, perfect for a 12″ subwoofer. Single-wall MDF keeps flex at bay with power levels up to about 500W RMS. Enclosure Specifications Type: Sealed, airtight Compatible with: Single 12″ round subwoofer Gross internal volume: 1.0 cu.ft. Net internal volume: 0.75 cu.ft. Dimensions (L×W×H): 18″ × 13.2″ × 13.2″ Max mounting depth: 12.25″ Cutout diameter: 11.25″ circle Panel thickness: 3/4″ (19mm) MDF Baffle face thickness: 3/4″, double-wall optional for SPL versions Construction & Materials Using Grade A MDF sourced in the USA, the enclosure is glued and stapled every 4″ along seams, then sealed with silicone. The carpet exterior bonds firmly with custom adhesive. Corner joints are glued and sealed; this box arrives pre-assembled and ready to install. Mounting holes are CNC-cut for exact fit and tight gaskets. Terminal Configuration Gold-plated spring terminals mount on the rear panel, making wiring quick and corrosion-resistant. They accept bare wire and are rated for vehicle use, recommending 14 AWG wire under 6 feet and 12 AWG over. The terminal cup is a clean 2.625″ diameter opening. Exterior Finish Premium black automotive carpet finish Approximately 1/8″ thick carpet pile UV and stain resistant surface No visible screws; corners sealed with silicone Compatibility Fits most standard 12″ round subs including brands like Alpine, Pioneer, JBL, Rockford Fosgate, and more. Confirm your sub fits the 11.25″ cutout diameter and max 12.25″ depth prior to installation. The internal volume is fixed at 0.75 cu.ft. Internal Acoustic Treatment No polyfill inside. Interior corners sealed, but no bracing rods or cross-members included. Installation Notes Ships fully assembled and sealed. Wiring connects through rear terminal cup. Mounting screws for your subwoofer not included. Avoid placing enclosure flush against solid surfaces that block rear panel ventilation. Weighs about 18–22 lbs empty. Package Contents 1× 12″ sealed subwoofer enclosure, assembled Pre-installed gold terminal cup (rear panel) Black carpet finish applied at factory Subwoofer driver and amplifier not included
