Single 12-inch Rectangular Vented Subwoofer Box - 35 L / 35 Hz - 612 × 368 × 289 mm

This vented (bass-reflex) enclosure is designed for a single 12-inch rectangular subwoofer, featuring a 35 L chamber tuned to 35 Hz. Constructed with a simple rectangle shape from 16 mm (5/8 inch) material, it includes a double-thickness front baffle to increase rigidity and reduce flex for high-output systems. The external dimensions are 612 × 368 × 289 mm (24.04 × 14.5 × 11.41 in). A single L-shaped slot port is positioned on the right side for consistent installation and visual alignment. This layout provides a port area suitable for high-output drivers with increased cone excursion and airflow demand, while balancing trunk space and sound for everyday car-audio use.