The Kicker 07C104 10 subwoofer is a powerful in-box speaker designed for car audio systems. With a 150W RMS power output and a 4 ohm impedance, this subwoofer delivers clear and impactful sound. The single voice coil design ensures efficiency and performance, while the 10-inch size offers a compact and easy-to-install option for enhancing your vehicle's audio experience. The Kicker 43C104 model is known for its quality and reliability, making it a popular choice among car audio enthusiasts.