The BOMPASS MAGNA-T GT-100BP is an active subwoofer that brings deeper low frequencies to your car's audio setup. It uses a 250mm driver placed within a double box enclosure featuring a slotted bass reflex phase inverter, which helps produce a cleaner sound by optimizing airflow. Since the amplifier is already integrated into the unit, you can save space and simplify your installation by connecting it directly to your head unit without needing an additional external amplifier.