This Cerwin-Vega VRAD10 enclosed powered subwoofer with passive radiator is a great addition to any car audio system. The 10in. speaker size and single voice coil provide a powerful sound experience, while the 200W RMS power ensures a high-quality audio output. Made in the United States, this subwoofer is a reliable and durable choice for any car. The Cerwin-Vega VRAD10 model is designed to provide a premium sound experience, and it does so with its enclosed powered design. The passive radiator helps to enhance the overall sound quality, making it a great choice for music lovers and audiophiles alike. This subwoofer is perfect for those who want to upgrade their car audio system and experience a superior sound quality.