12-inch Single Rectangular Ported In-Vehicle Subwoofer Box - 30 L / 35 Hz - 570 × 327 × 252 mm

This Vented / Bass-Reflex enclosure is designed for a single 12-inch rectangular subwoofer and features a 30 L chamber tuned to 35 Hz. Built from 16 mm (5/8 inch) material in a simple rectangle shape, the cabinet measures 570 × 327 × 252 mm (22.4 × 12.88 × 9.95 in). It serves as a general-purpose home subwoofer enclosure for music and stereo systems, balancing bass extension, cabinet size, output, and low distortion. For car-audio use, it accounts for limited trunk space, installation constraints, and balanced sound. The design incorporates one L-shaped slot port with a port area suitable for drivers with moderate cone excursion and airflow demand.