Universal box template
In-Vehicle 12-inch Single Round Bass-Reflex Subwoofer Box - 30 L / 35 Hz - 650 × 359 × 264 mm

Description
This Vented / Bass-Reflex enclosure is designed for a single 12-inch round subwoofer, featuring a 30 L chamber tuned to 35 Hz. Built from 16 mm (5/8 inch) material in a simple rectangle shape, the cabinet measures 650 × 359 × 264 mm (25.55 × 14.14 × 10.43 in). The design includes a double-thickness front baffle to increase rigidity and reduce flex, making it suitable for high-output systems. It utilizes one L-shaped slot port with a port area optimized for high-output drivers with increased cone excursion and airflow demand. This versatile enclosure is ideal for everyday car audio use, fitting limited trunk spaces, or as a general-purpose home subwoofer box that balances bass extension, size, and low distortion.