An often neglected, but at the same time very important part, are car subwoofers. The tweeter can perfectly play higher midrange and high bands, mid-bass, then midrange to bass, but "subbass" like a subwoofer - it can really only play a subwoofer. Equipment without a subwoofer is always a compromise. The subwoofer is not only for young enthusiasts looking for performance and strong bass, but mainly for full-format quality listening in the entire frequency spectrum.