In Phase USW300 Compact Under Seat 300W Active Amplified Powered Subwoofer Sub

In Phase Car Audio USW300 - 300W Underseat Compact Subwoofer. 300W Underseat Compact Subwoofer - In Phase Car Audio USW300. 300w Max Power. Many people think about changing speakers in you car, my advice is just add the USW 300 and you will think you have new life in your car!