Single 15-inch Vented / Bass-Reflex Subwoofer Box - 85 L / 32 Hz

This vented (bass-reflex) enclosure is designed for a single 15-inch round subwoofer, featuring an 85 L chamber tuned to 32 Hz. Constructed from 16 mm (5/8 inch) material in a simple rectangle shape, the cabinet measures 635 × 495 × 445 mm (25 × 19.51 × 17.56 in). One internal brace reinforces the structure and reduces 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 high-airflow SPL use. It serves as a general-purpose home subwoofer enclosure that balances bass extension, size, and low distortion, while also being suitable for everyday car audio where trunk space and balanced sound are key.