19" subwoofers represent the absolute extreme among car bass speakers and are among the rarest sizes used only in the most powerful car audio installations. With a diameter of approximately 483 mm, they can create bass that is not only audible but literally shakes the entire car. These subwoofers require enormous space, a precisely designed enclosure and extremely powerful amplifiers to show their full potential. They are designed for true audio enthusiasts and competition installations where the goal is to achieve maximum volume, sound pressure and bass effect that smaller speakers can never offer. If you are looking for the absolute pinnacle of car audio and want to own a bass speaker that is unrivalled, a 19" subwoofer is the most extreme choice.