The JL Audio 10W1v2-4 Series 10 in. 4-ohm Car Subwoofer is a powerful and high-quality speaker designed for car audio systems. With a single voice coil and an RMS power of 450W, this subwoofer delivers deep and rich bass for an enhanced listening experience. The 10-inch size makes it ideal for adding a solid low frequency response to your car's audio setup. Built by JL Audio, a trusted brand in the industry, this subwoofer is sure to impress with its performance and durability.