The speaker size of Kia k4 is 3.5 inches. The Kia K4 is equipped with 6 speakers at the front, three speakers on each side. The overall sound effect is very good and comfortable to listen to. The horn is the audio signaling device of the car. During the driving process of the car, the driver sends out necessary audio signals according to needs and regulations to warn pedestrians and attract the attention of other vehicles to ensure traffic safety. It is also used to urge and transmit signals.

Car electric horns rely on the vibration of a metal diaphragm to produce sound. The car electric horn is composed of iron core, magnetic coil, contacts, armature, diaphragm, etc. When the driver presses the horn switch, current passes through the coil through the contact, and the coil generates magnetic force to attract the armature, forcing the diaphragm to move. The movement of the armature causes the contact to open, the current is interrupted, the coil magnetism disappears, and the diaphragm moves between its own elasticity and the spring leaf. Under the action, it returns to its original position together with the armature, the contact is closed and the circuit is connected again, the current flows through the contact through the coil to generate magnetic force, and the above action is repeated. This repeated cycle causes the diaphragm to vibrate continuously, thereby emitting sound. ***The sound plate and the diaphragm are rigidly connected, which can make the vibration smooth and produce a more pleasant sound (that is, the electromagnet principle).

One million car purchase subsidies