Triangle Ported Design: Engineered with a vented triangle shape that improves airflow and reduces distortion, this enclosure delivers louder, deeper bass in your car audio system Spacious 2.2 Cu Ft Air Volume: Offers ample internal air space to support high-performance bass output from most 12-inch subwoofers, helping you get the most out of your audio setup Durable Bed Liner Coating: Built to withstand wear, tear, and vibration, the rugged spray-on bed liner finish resists moisture and damage, making it suitable for high-impact audio setups Precision-Built: Made from dense, 3/4-inch medium-density fiberboard for long-lasting strength, with spring-loaded terminals for secure wire connections and clean signal transfer Universal Fit for Most 12" Subs: Cutout diameter of 11 inches fits standard subwoofers, with a tuning frequency of 54 Hz to enhance low-end response and create punchy, hard-hitting bass Upgrade your car audio setup with the QPower QBOMB12TB-SINGLE Triangle Ported Subwoofer Box, engineered for serious bass enthusiasts who want deeper, louder, and more powerful sound. This single 12-inch subwoofer enclosure features a unique triangle-shaped ported design that enhances airflow to reduce distortion and improve low-frequency response—giving your system that unmistakable thump and better bass dynamics. With 2.2 cubic feet of air space, this enclosed woofer box provides optimal internal volume for most 12" subwoofers, delivering precise, hard-hitting bass. Its construction is precision-crafted from durable 3/4-inch MDF (medium-density fiberboard) known for its acoustic consistency and strength. To withstand tough road conditions and protect your gear, the box is finished with a rugged spray-on bed liner coating that adds moisture resistance and impact durability. Spring-loaded terminals provide secure wiring connections for clean signal transfer and easy installation. The enclosure is tuned to 54 Hz, helping your sub produce smoother low-end frequencies and a fuller soundstage in any vehicle—turning every drive into a rolling bass party with classic QPower punch. Whether you're building a custom trunk setup or upgrading your daily driver’s sound system, the Q Power QBOMB12TB-SINGLE Triangle Ported Subwoofer Box delivers professional high-performance bass quality in a space-saver profile. Its unique triangular shape also provides greater placement flexibility, allowing you to fit it in tighter or angled trunk spaces. Built for long-lasting use, this subwoofer box balances sleek style with uncompromising automotive audio performance—the ultimate upgrade for anyone looking for a good base of form, fit, and thunderous function.