QPower Single Triangle Car Audio Ported Subwoofer Box, Fits Most 12-Inch Subwoofers - Deep Bass MDF Enclosure with Bed Liner Finish, Tuned to 54 Hertz, 2.2 Cu Ft Air Space

Triangle Ported Design: Engineered with a vented triangle shape that enhances airflow and minimizes distortion, this enclosure produces louder, deeper bass in your vehicle audio system. Spacious 2.2 Cu Ft Air Volume: Provides generous internal air space to accommodate high-performance bass output from most 12-inch subwoofers, allowing you to maximize your audio configuration. Durable Bed Liner Coating: Constructed to endure wear, tear, and vibration, the tough spray-on bed liner finish resists moisture and damage, making it appropriate for high-impact audio setups. Precision-Built: Fabricated from dense, 3/4-inch medium-density fiberboard for durable strength, featuring spring-loaded terminals for reliable wire connections and clean signal transfer. Universal Fit for Most 12" Subs: The 11-inch cutout diameter accommodates standard subwoofers, with a tuning frequency of 54 Hz to improve low-end response and generate punchy, hard-hitting bass