Sound and the composition of the speaker can be seen: the sound is a soul of the sound reduction system, the speaker is a sound of the hardware device, the speaker is part of the sound, the speaker is a kind of audio equipment.
Car audio on the temperature and humidity and shock effects have a good ability to adapt, there are a variety of noise, such as road noise, tire noise, engine noise, noise and other noise sources, will affect the effect of the speaker to play Loudspeaker installation location, angle and other issues, often with FRP inverted mold, including leather and other technology to ensure that the car modified after the sound of the sound and the sound of the effect of the car audio equipment to play the desired level, the need for a good process and Connection security. Car audio is a whole system, the conversion needs a reasonable match and debugging, is a high technical content of the system engineering.

1, the former signal control

The front-end signal control is the processing of audio between the audio source and the amplifier, such as the control of the volume size, the adjustment of the treble and bass, the balance, the front and rear volume adjustment, and the like.

2, power amplification
Power amplification is the level of control of the sound intensity amplification, to strengthen the success rate of the output of the body, which is commonly known as the amplifier.

3, the speaker
The speaker will be the sound into the sound of the mechanical parts called the speaker., Commonly known as the speaker. According to the principle of acoustics, so that sound waves have a better play, the speaker on the box unit, it becomes a speaker in the car due to space Restrictions, speakers installed in the door, the door constitutes a box.

4, software and media
Software and media is a source of a source, it can be CD, DVD, can also be SD card or radio, etc., need to host this hardware interface to support.

5, sound source
Audio source is able to decode the software and multimedia institutions, can be understood as the software and the media decoded out of the audio signal.

6, transmission agencies
Transmission mechanism is a complete sound system, wire is an indispensable combination of parts, but the wire is often easy to be ignored. Such as power, grounding, start, signal, speakers, fiber and special systems required wire, because of their different requirements in the design of the difference. The rationality of the wire and the installation process is good, will also have a significant impact on the sound effects.

Speaker is the box plus speakers. Is the audio signal into a sound of a terminal equipment, composed of speakers composed of 1. Speaker 2. box 3. divider composed of three parts.

1, the speaker
There are many types of speakers: according to its conversion method can be divided into electric, electromagnetic, piezoelectric, digital and other; according to the diaphragm structure can be divided into single cone, composite cone, compound horn, with Shaft, etc., according to the beginning of the diaphragm can be divided into cone-type, the top of the ball, flat, belt and other; according to the playback frequency can be divided into high frequency, intermediate frequency, low frequency and full band speaker; Can be divided into external magnetic, internal magnetic, dual magnetic and shield and other types; according to the magnetic properties can be divided into ferrite magnets, neodymium boron magnets, aluminum nickel cobalt magnet speakers; Sub-paper and non-paper cone speakers.

2, the box
The box is used to eliminate the short circuit of the loudspeaker unit, suppress its acoustic resonance, broaden its frequency response range and reduce distortion. Car speakers common box shape with a square and trapezoidal, etc., according to the internal structure of the box and there are closed, inverted phase, band-style and so on.

3, frequency divider
The divider has the power divider and the electronic frequency divider, the main role is band division, amplitude frequency characteristic and frequency frequency characteristic correction, the impedance compensation and the attenuation and so on.
The frequency divider divides the frequency divides, divides the frequency and the frequency divides to the frequency. Two frequency is the entire frequency band of the audio signal is divided into high frequency and low frequency two frequency bands; three frequency is the whole frequency band is divided into high frequency, intermediate frequency and low frequency three frequency bands; four frequency divided by three Ultra low frequency band.
Car audio often used in the subwoofer, the amplifier circuit placed in the speaker, as long as the audio can be connected with the sound, called "active speaker."