8-inch Single Rectangular Bass-Reflex Car Subwoofer Box - 20 L / 38 Hz - 583 × 285 × 256 mm

This rectangular Vented / Bass-Reflex enclosure is designed for a single 8-inch subwoofer, balancing bass extension, size, and low distortion for both home stereo systems and daily car audio use. The 20 L chamber is tuned to 38 Hz and features one L-shaped slot port with an area optimized for high-output, large-excursion drivers and high airflow SPL demands. Built from 16 mm (5/8 inch) material, the cabinet measures 583 × 285 × 256 mm (22.92 × 11.23 × 10.11 in). It features a double-thickness front baffle and one internal brace to increase rigidity and minimize vibration, while remaining compact enough for limited trunk spaces and constrained installations.