Single 15-inch Vented / Bass-Reflex Subwoofer Box - 65 L / 35 Hz

This vented (bass-reflex) enclosure is designed for a single 15-inch round subwoofer, featuring a 65 L chamber tuned to 35 Hz with one L-shaped slot port. Built from 18 mm (3/4 inch) material in a simple rectangle shape, the cabinet measures 657 × 432 × 337 mm (26.35 × 17.04 × 13.31 in). It includes a double-thickness front baffle to increase rigidity and reduce flex, making it ideal for high-output systems. The port area is optimized for drivers with moderate cone excursion and airflow demand. Whether used for home stereo systems to balance bass extension and low distortion or for everyday car-audio use where trunk space and balanced sound are priorities, this box delivers versatile performance.