How Does a Car Speaker Work?
Background Any stereo breaks down audio information into an electrical signal. The information is originally recorded, usually by two microphones, onto a medium such as a CD. This recorded medium is either read directly by your CD player or other device, or converted and sent via radio waves if you’re listening to a radio. Your car’s receiver processes the signal and sends it out to the speakers. Crossover After the electrical signal is sent from the receiver or amplifier, a crossover network breaks the full signal into specific frequency ranges and routes the individual signals to the appropriate driver. Drivers Different drivers are used to create different frequencies. A larger driver called a woofer is needed to drive low-frequency sound waves. A much smaller driver called a tweeter is needed for the fast vibrations required to create high-frequency sound waves. A midrange driver takes care of those frequencies in between. These drivers can be contained within one speaker housing o
