Single 12-inch Rectangular Vented / Bass-Reflex Subwoofer Box (35 L, 35 Hz)

This vented (bass-reflex) enclosure is designed specifically for a single 12-inch rectangular subwoofer and features a 35 L chamber tuned to 35 Hz. Built from 16 mm (5/8 inch) material in a simple rectangle shape, the cabinet measures 720 × 414 × 284 mm (28.28 × 16.3 × 11.2 in). It utilizes a double-thickness front baffle to increase rigidity and reduce front-panel flex, making it ideal for high-output systems. The design incorporates one L-shaped slot port with an area optimized for high-output, large-excursion drivers and SPL-oriented use requiring high airflow. Whether used as a general-purpose home subwoofer for music and stereo systems to balance bass extension and low distortion, or for everyday car-audio use where trunk space and installation constraints are key, this box provides balanced sound.