SPEAKER W27909.01500.01W

Car speakers are commonly known as horns. They are electro-acoustic transducers that can convert electrical signals into sound signals and radiate them into the air. They are indispensable and crucial components in the car audio system.

Car speakers have some unique features. For instance, they need to withstand temperature changes to prevent aging; they must be moisture-proof, especially for the cone part; they need to be dust-proof, with a dust cover; they should be designed firmly to withstand vibrations; they use noise-reducing materials to deal with noise; and they have a low impedance.

The working principle of a speaker is that the coil inside it gets energized to generate a magnetic field. This field interacts with the magnetic field of the magnet, causing the coil to vibrate and thus produce sound. In simple terms, it is the force exerted on an electrified conductor in a magnetic field.

There are various classification methods for car speakers. According to the playback frequency, there are full-range speakers with a frequency range of 20Hz - 22kHz; tweeters with a frequency range of 5 - 22kHz; mid-range speakers with a frequency range of 80Hz - 5kHz; and subwoofers with a frequency range of 16Hz - 200Hz.

According to the opening of the diaphragm, there are cone-type, dome-type, horn-type and band-type speakers. According to the size of the diaphragm, common high-frequency speaker unit sizes include 25mm, 35mm, etc.; mid-low frequency speaker unit sizes include 80mm, 100mm, etc.; ultra-low frequency speaker unit sizes include 200mm, 250mm, etc. According to the performance, there are individual speakers, package speakers, coaxial speakers and ultra-low frequency speakers.

The car horn is also a type of car speaker. It is the audio signal device of the car. During driving, the driver can emit audio signals as needed to ensure traffic safety, and it can also urge movement and convey signals.

The car electric horn produces sound through the vibration of a metal diaphragm. It is composed of an iron core, a magnetic coil, contacts, a relay, and a diaphragm. According to the power of the sound, car horns are divided into air horns and electric horns. The air horn uses compressed air to make the metal diaphragm vibrate and produce sound, and is mostly used in large buses and heavy trucks. The electric horn uses electromagnetic attraction to make the metal diaphragm vibrate and produce sound. It is classified by structural form as cylindrical, spiral, and conical. It is usually made in the form of a spiral or conical shape. The working methods are divided into mechanical and electronic types. The electronic type is further divided into contact type and non-contact type.

Due to the unique nature of cars, it is impossible to install universal speakers. Instead, the in-car speakers are directly installed inside the vehicle. High-end cars can even have up to ten of them. Generally speaking, the larger the speaker's diameter, the better the low-frequency performance. Those who enjoy bass can choose the ones with larger diameters. Understanding the relevant knowledge of car speakers is extremely important for optimizing the audio effect of the car.