Universal box template
Single 15-inch Round Ported In-Vehicle Subwoofer Box - 65 L / 35 Hz - 668 × 497 × 388 mm

Description
Designed for a single 15-inch round subwoofer, this Vented / Bass-Reflex enclosure features a 65 L chamber tuned to 35 Hz. The cabinet is constructed from 18 mm (3/4 inch) material in a simple rectangle shape with external dimensions of 668 × 497 × 388 mm (26.82 × 19.62 × 15.33 in). It incorporates a double-thickness front baffle to increase rigidity and reduce panel flex, making it ideal for high-output systems. One L-shaped slot port provides a port area suitable for high-excursion drivers and high-airflow SPL applications. This versatile design balances bass extension, size, and low distortion for both everyday car audio use in limited trunk spaces and general-purpose home stereo systems.