Walking into the car audio shop, besides the dazzling host and power amplifier, you will also see the different styles and exquisite loudspeakers (loudspeakers). You may think that they are the same as ordinary household audio, but they are not. What's the difference?
Temperature
Household speakers are used in the room, so the temperature difference is small, while the car works outdoors, with the changing climate, the temperature difference is large, so it is necessary to resist temperature aging.
(2) Humidity
Vehicles are attacked by dampness when it rains, when they walk along waterways and when they wash their cars. Therefore, car loudspeakers need to be damp-proof. Nowadays, most of them use damp-proof chemical synthetic speakers.
(3) Dust
Household appliances loudspeakers are used in the room, so there is less dust, and there is more dust in the car. Dust shield is needed to prevent noise caused by voice coil friction.
Vibration
Vehicle loudspeakers are subjected to the vibration impact of the vehicle whenever and wherever it moves, so they should be designed firmly and not be loosened.
Noise
Considering all kinds of noise and vibration, the materials used are different, and different methods should be adopted to cancel out different noise.
_Impedance
In order to obtain high power, the impedance of loudspeakers is small, and 4Ω、3.2Ωand2Ω。are often used.
