The MAGNA-T GT-10T is a passive car subwoofer designed to add depth and low-frequency punch to your vehicle's audio system. It features a 250mm driver housed in a Poloboc enclosure, which uses a half-barrel tube shape to optimize sound resonance. A built-in phase inverter helps refine the bass response, ensuring a cleaner output. The exterior is finished in black carpeting for a discreet look and includes a protective grille to keep the speaker safe from damage during daily use. Since this unit is passive, you will need to connect it to an external amplifier to power the driver.