Universal box template
2-Driver 8-inch Rectangular Vented / Bass-Reflex Subwoofer Box

Description
This enclosure is designed for 2-driver 8-inch rectangular subwoofer configurations, featuring a 50 L chamber tuned to 34 Hz. Built from 16 mm (5/8 inch) material with external dimensions of 715 × 341 × 341 mm (28.12 × 13.43 × 13.43 in), the simple rectangle shape works perfectly for everyday car audio systems or home stereo use. It carefully balances bass extension, output, and low distortion while accounting for limited trunk space. The design includes one L-shaped slot port with a port area optimized for high-output, large-excursion drivers and high-airflow SPL applications.