As an increasingly popular means of transportation, the car has occupied most of the time of human beings, and the original car audio as the only spare parts with entertainment functions in this driving tool, sometimes can not meet the needs of some drivers who have high-level requirements for music, so car audio modification has become a more important thing.
For many modifications, most of them may not know the basic knowledge of car audio, so the following will share with you some basic knowledge of car audio modification, I hope it will help you.
First of all, the basis of car audio modification is to be familiar with its basic composition, many people may not even know what the content of the car audio system has, how to understand the audio system? First of all, let's briefly introduce the basic composition of car audio, and some common sense and modification precautions!
1. Car audio source (host)
Most of the domestic car audio uses CD, DVD, MD, MP3, etc. as the sound source part, which is what we usually call the host. As the source of sound, its installation position is generally installed in the console of the car, which is not only the core of all audio systems, but also an important part of the audio system. Among them, the sound quality of the CD player is relatively pure, and the capacity of MP3 and MD players is relatively large, so the functions of the DVD player are relatively rich. In conclusion, different hosts have their own strengths.
Second, car audio amplifier
The power amplifier is also the power amplifier, which is responsible for amplifying the power of the pre-amp audio signal, and then used to drive the horn. Generally, most of the power amplifiers built into the host have very small output power, and their sound quality cannot be compared with the external power amplifiers. If you want better sound quality or push more powerful speakers, adding an amplifier is indispensable. According to the structure, the power amplifier can be divided into class A power amplifier, class AB power amplifier, class B power amplifier, if according to the number of channels, it can be divided into single power amplifier, two-way power amplifier, four-way power amplifier, six-way power amplifier.
3. Car audio DSP processor
DSP power amplifier is also called DSP digital power amplifier, using DSP chip, can adjust the parameters of each channel through the computer, and the biggest difference with the traditional power amplifier is that the DSP power amplifier can better manage the power amplifier through the computer, and the traditional power amplifier can not do this. The DSP power amplifier has the functions of other power amplifiers, and at the same time, it can also attenuate the overlapping frequencies caused by the in-car environment, and the attenuation frequency can be added, and the distance between each horn and the human ear in the car can also be adjusted. The DSP power amplifier mainly has delay processing, EQ adjustment function, and frequency division function, which can adjust the defects that cannot be physically adjusted in the car, improve the complex audio environment in the car, and make the sound quality distinct.
Fourth, car audio speakers
The profession is called the speaker, and the horn is just a colloquial name. As a restoration device in car audio, the restoration of the sound channel is the most important component that affects and determines the performance and sound quality of the audio in the car. Car horns can be divided into tweeters, midrange speakers, and woofers according to frequency response; According to the type, it can be divided into a set of horns and coaxial speakers, coaxial speakers are full-range speakers, which can respond at full range, and the high, medium and low bass are on the same axis; The set speaker is an independent split design, and is equipped with a crossover, which can get a better full-range response and sound field distribution design.
5. Car audio subwoofer
The subwoofer is the subwoofer part, which is used to compensate for the low frequency and reproduce the subwoofer, which is divided into active subwoofer and passive subwoofer. A perfect sound system, the subwoofer is also indispensable, its role is to make the low frequency of the entire sound system have better output, the music is fuller.
6. Car audio cables
When it comes to cables, many modders only regard them as ordinary accessories, but in fact, if they want a good audio system, they are also inseparable from cables. No matter how good a set of audio equipment is, if there is no good cable to assist, the sound quality will be greatly reduced. The cable is mainly divided into three parts: power cable, speaker cable and signal cable, in the selection of cable not only to be of good quality, but also to match with speaker, power amplifier and other equipment, the cable also determines the final sound quality effect.
Precautions for modifying car audio
1. Sound equipment is properly selected, balanced matching, neither greedy nor blindly following the trend, the price should be in line with your budget, and the music style should also be determined.
2. To choose a professional modification shop, the modification master needs to be skilled in disassembly and assembly, and try not to change the direction of the original car line.
3. It is very important to take sound insulation measures when modifying, and a quiet and comfortable listening environment.
4. Speakers and other audio equipment should be installed firmly, so as to avoid loose or falling off caused by vibration in the later stage, which will affect the sound quality.
5. The rear power fuse box should be kept away from the audio signal line.
6. Add power amplifier, and the installation position should consider the problem of heat dissipation.
7. All power supply positive terminals should be protected and connected with special connectors.
8. After the modification is completed, do a good job of effective debugging, which is very important in car audio modification.