15-inch 2-Driver In-Vehicle Bass-Reflex Subwoofer Box - 130 L / 32 Hz - 1230 × 452 × 452 mm

This vented (bass-reflex) enclosure is expertly designed for two round 15-inch subwoofers, featuring a 130 L chamber precision-tuned to 32 Hz with a single L-shaped slot port. Built as a simple rectangle from 18 mm (3/4 inch) material, the cabinet measures 1230 × 452 × 452 mm (49.11 × 17.85 × 17.85 in). It features a double-thickness front baffle to increase rigidity and reduce front-panel flex, making it ideal for high-output subwoofer systems. The port area is specifically optimized for high-output, large-excursion drivers and SPL-oriented use with high airflow demands. Whether used as a general-purpose home subwoofer to balance bass extension, size, and low distortion or for everyday car-audio use where trunk space and installation constraints are key, this design delivers a perfectly balanced sound.