The tweeter and subwoofer are two important components of the car audio system, responsible for reproducing the high-frequency and low-frequency parts of the sound, respectively.
The main difference between a tweeter and a subwoofer is the sound quality they produce. The sound emitted by a tweeter belongs to the high frequency range, while the sound emitted by a subwoofer belongs to the low frequency range. Although they both belong to speakers, they work on the same principle and are composed of magnets and coils.
The main function of a tweeter is to express the delicacy of sound, so its installation position is very particular. If the installation position is not scientific during car audio modification, it will affect the sound field effect. High pitched speakers should be installed as close to the human ear as possible, so as to better reproduce the sound of the high pitched part.
The subwoofer is usually located under the vehicle seat or inside the rear door panel, and some vehicles and car owners have modified it to be located in the backrest of the rear seat or inside the trunk. The larger the aperture of the horn, the better the lower frequency limit and the worse the upper limit. Conversely, the smaller the aperture, the better the upper limit and the worse the lower limit. Generally speaking, high pitched speakers handle sounds around 2000-20000HZ, while low pitched speakers handle sounds around 20-3000HZ, with a certain overlap between the two.
In short, tweeters and subwoofers each play their own roles and perform different functions. Proper installation and use of them can bring a better music experience.