Single 12-inch Rectangular Vented / Bass-Reflex Subwoofer Box

This vented (bass-reflex) enclosure is specifically designed for a single 12-inch rectangular subwoofer, utilizing a 40 L chamber tuned to 35 Hz. Built with a simple rectangle shape from 16 mm (5/8 inch) material, the cabinet measures 608 × 357 × 264 mm (23.91 × 14.09 × 10.41 in) in width, height, and depth. It functions as a general-purpose home subwoofer enclosure for music and stereo systems, balancing bass extension, cabinet size, output, and low distortion, while also serving everyday car-audio use by accounting 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.