Single 12-inch Rectangular Vented / Bass-Reflex Subwoofer Box - 30 L / 38 Hz

Designed for a single 12-inch rectangular subwoofer, this Vented / Bass-Reflex enclosure features a 30 L chamber tuned to 38 Hz. The cabinet is constructed from 16 mm (5/8 inch) material in a simple rectangle shape with external dimensions of 639 × 351 × 262 mm (25.12 × 13.84 × 10.32 in). To accommodate high-output drivers with increased cone excursion and airflow demand, the design includes a single L-shaped slot port with an optimized port area. The double-thickness front baffle increases cabinet rigidity and reduces front-panel flex, ensuring it is suitable for high-power systems. This versatile enclosure balances bass extension, size, and low distortion for general-purpose home stereo use while remaining compact enough for everyday car-audio applications where trunk space and installation constraints are key.