This Massive Audio ECO12S4 subwoofer is a powerful addition to any car audio system. With a single voice coil and 250 RMS power, it provides a premium sound experience for any music lover. The 12-inch speaker size and non-enclosed, non-powered design make it a versatile choice for any vehicle. Whether you're a fan of hip-hop or classic rock, this subwoofer is sure to enhance your listening experience. Its brand, Massive Audio, is known for their high-quality products and this model is no exception. Upgrade your car audio system today with the ECO12S4 and enjoy premium sound on any road trip.