The Orion subwoofer has a is capable of producing deep resonating bass notes in any car audio system The subwoofer has a peak performance power handling of 400 watts. This provides the subwoofer with the right amount of power to ensure that the beautiful bass tones are heard clearly and without large amounts of distortion. The RMS power handling on the car subwoofer is 200 watts. The Orion C15D4 measures 15 inches in diameter making it ideal for use in spaces with more room for the subwoofer. The Orion subwoofer has impedance rating of 4Ohm. There are dual voice coils present on the Orion C15D4. The car subwoofer is capable of producing great bass tones. The dual voice coils and the large diameter of the subwoofer combine to create a powerful car audio component. Users who want additional bass in their car but want a unit that is not going to require an additional battery the Orion subwoofer has many features that they will enjoy.