The sound of car alarms going off in the middle of the night is a now familiar part of the urban landscape. There is a lot more to the car security systems of today, though, than simple noisemakers. Car security systems have become more sophisticated, and many now sport a dizzying array of features.
Car LCD screens are rapidly becoming staples of the mobile entertainment centers that modern vehicles have become. These monitors are typically used for watching TV and playing DVDs, videos and games. LCD screens are also becoming more common in other vehicle display applications, such as in GPS navigation devices, radios, car alarms, and so on.
The basic purpose of the amplifier in a car audio system is to amplify the sound coming from the pre-amplifier before feeding it to the speakers. Since most installed car audio system amplifiers have relatively low power, it is common practice among car audio enthusiasts to install an aftermarket amplifier. Although many people think the main reason for getting a higher power amplifier is simply to make the car’s audio system louder (and it will do that), an amplifier also improves sound quality at all volume levels.