Single 15-inch Rectangular Ported Car Audio Subwoofer Box - 65 L / 35 Hz - 633 × 466 × 419 mm

This Vented / Bass-Reflex enclosure is specifically designed for a single 15-inch rectangular subwoofer, featuring a 65 L chamber professionally tuned to 35 Hz. Built from 18 mm (3/4 inch) material with a simple rectangle shape, the cabinet measures 633 × 466 × 419 mm (25.28 × 18.39 × 16.55 in). One internal brace reinforces the structure and minimizes panel vibration, making it ideal for high-output systems. The design utilizes one L-shaped slot port with an area optimized for high-excursion drivers and SPL-oriented use requiring high airflow. Whether used as a general-purpose home subwoofer to balance bass extension and low distortion or for everyday car-audio where trunk space and installation constraints are key, this box provides a perfectly balanced sound.