Single 8-inch Round Vented / Bass-Reflex Subwoofer Box - 25 L / 35 Hz

This Vented / Bass-Reflex enclosure is designed for a single 8-inch round subwoofer, featuring a 25 L chamber tuned to 35 Hz. Built from 18 mm (3/4 inch) material in a simple rectangle shape, the cabinet measures 581 × 303 × 273 mm (23.36 × 11.97 × 10.77 in). It includes one internal brace to reinforce the panels and reduce vibration, making it suitable for high-output systems. The design utilizes one L-shaped slot port with a port area optimized for high-output, large-excursion drivers and SPL-oriented use with high airflow demands. This versatile enclosure is ideal for everyday car audio where trunk space and installation constraints are key, as well as for general-purpose home stereo systems, balancing bass extension, cabinet size, output, and low distortion.