Single 12-inch Round Vented / Bass-Reflex Subwoofer Box - 35 L / 35 Hz

This Vented / Bass-Reflex enclosure is designed for a single 12-inch round subwoofer, featuring a 35 L chamber tuned to 35 Hz. Constructed from 18 mm (3/4 inch) material in a simple rectangle shape, the cabinet measures 750 × 416 × 285 mm (30.18 × 16.42 × 11.24 in). A double-thickness front baffle increases rigidity and reduces front-panel flex, making it ideal for high-output subwoofer systems. The design utilizes one L-shaped slot port with a port area suitable for high-output, large-excursion drivers and SPL-oriented use with high airflow demand. Whether used for everyday car audio where trunk space and installation constraints are key, or as a general-purpose home subwoofer enclosure for music and stereo systems, it perfectly balances bass extension, cabinet size, output, and low distortion.