How Does a Car Audio System Work? Head Unit The head unit refers to the main
device that serves as the source of the sound or simply the radio that is
installed in the car's dashboard maxidiag
elite md802 updates. The unit has a radio receiver and tuner component that
receives radio frequencies through an antenna. The tuner is used to select or
adjust radio frequencies or broadcast bands. The unit has other components,such
as a disc player that plays different types of disc formats,a preamplifier that
sends sound signals to the speakers and an equalizer that shapes the sound. The
radio unit has an interface for control over the unit's different functions such
as the volume and menu functions. The head unit is powered by the car's
electrical distribution system. Wires and cables also connect the head unit to
all the other components in the audio system. Amplifier The radio unit is
already equipped with a preamplifier. The preamplifier is built into the radio
unit and prepares the electronic signal for further boosting. This built-in
component also incorporates the equalizer and tone control. An audio
amplifier,on the other hand,is a separate device from your head unit and is used
to further increase the power and sound quality of the radio and drive the
various speakers. If higher quality speakers are used in the car,the amplifier
can send a higher power output to amplify the speakers resulting in better
quality sound. The amplifier position in the audio system chain is between the
head unit and the speakers. Speakers The speaker component receives an
electronic signal from your head unit and amplifier and turns it into an actual
sound. The speaker system consists of different types of speakers that produce
different sound qualities. The tweeter produces high frequency sound;the woofer
produces low frequency sound;the mid-range speaker produces a mid-frequency
sound between the tweeter and the woofer,and the subwoofer produces the lowest
frequency sound. The signal output can be shaped further by the head unit's
interface. Capacitor The capacitor provides the audio system with extra
electrical power. A car's upgraded audio system and its components demand
adequate electrical energy to function properly. To avoid taking too much of the
car's electrical power,the capacitor can store extra energy to be used on demand
without affecting the car's electrical flow maxisys
pro. The sound signal from the radio unit to all the other components will
be disrupted if it does not have consistent power flow. Auxiliary Input Device
Other components can be plugged into the head unit,like storage devices,portable
audio players and disc changers. They are linked through inputs found behind or
in front of the head unit or directly linked to the power amplifier.
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