Single 12-inch Round Bass-Reflex Subwoofer Box - 40 L / 35 Hz - 590 × 391 × 352 mm

This vented (bass-reflex) enclosure is expertly designed for a single 12-inch round subwoofer, featuring a 40 L chamber precisely tuned to 35 Hz. Constructed from 16 mm (5/8 inch) material in a simple rectangle shape, the cabinet measures 590 × 391 × 352 mm (23.2 × 15.41 × 13.87 in). One internal brace reinforces the structure and minimizes panel vibration, making it ideal for high-output systems. The design utilizes one L-shaped slot port with an area optimized for high-output, large-excursion drivers and SPL-oriented applications requiring high airflow. Whether used for daily car audio with trunk space constraints or as a general-purpose home subwoofer for music and stereo, it perfectly balances bass extension, size, output, and low distortion.