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

This simple rectangular cabinet is designed for a single 8-inch rectangular subwoofer, serving as a versatile solution for home music systems and car audio. Built from 16 mm (5/8 inch) material, the enclosure features external dimensions of 593 × 302 × 272 mm (23.32 × 11.9 × 10.71 in). The 25 L chamber is tuned to 35 Hz using one L-shaped slot port with a port area optimized for high-output, large-excursion drivers and high airflow SPL demands. To ensure rigidity for high-output systems, the design includes a double-thickness front baffle and one internal brace to minimize panel vibration. This box balances bass extension and output with low distortion, while accounting for limited trunk space and installation constraints.