Do you know what a car subwoofer is? Would you like to find out? In essence it is a speaker not in a box enclosure ( although they can and are often put in boxes ) with extra power running to it courtesy of an amplifier. The purpose of a car sub woofer is to deliver low frequency bass sounds in the music being played. Usually the octaves consistently delivered by sub woofers are missing from normal range car audio systems with speakers. Some music is specially created specifically for bass and are commonly known as bass tracks.
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