L7T Down-Firing Loaded Enclosures are ultra-thin, square subwoofers loaded in a custom-tuned box, made to pound out the low notes without taking up the cargo space you need. The tough down-firing enclosure design with internal bracing resists stacking weight and scratches. Pile up the cargo! Equipped with a thin L7T Solo-Baric sub, the down-firing enclosure effortlessly fits under the seat, in your trunk or in your cargo area – no grille needed! The L7T features Forced-Air Cooling, creating high power handling and ultra reliability.