1, Car audio source (main unit)
Most car audio systems in China use CDs, DVDs, MD, MP3, and other audio sources, which are commonly referred to as consoles. As the source of sound, it is generally installed on the control console of a car, which is not only the core of all audio systems, but also an important component of the audio system. The sound quality of CD players is relatively pure, while the capacity of MP3 and MD players is relatively large, so the functions of DVD players are relatively rich. In short, different hosts have their own strengths.
2, Car audio amplifier
A power amplifier, also known as a power amplifier, is responsible for amplifying the front-end audio signal and then using it to drive the speaker. Most power amplifiers built into a typical host have very low output power, and their sound quality cannot be compared to external power amplifiers. If you want better sound quality or drive higher power speakers, it is essential to add power amplifiers. Amplifiers can be divided into Class A amplifiers, Class AB amplifiers, and Class B amplifiers according to their structure. If divided by the number of channels, they can be divided into single channel amplifiers, two channel amplifiers, three channel amplifiers, four channel amplifiers, and five channel amplifiers.
3, The car audio DSP processor DSP amplifier, also known as DSP digital amplifier, uses a DSP chip and can adjust the parameters of each channel through a computer. The biggest difference from traditional amplifiers is that DSP amplifiers can better manage the amplifier through a computer, which traditional amplifiers cannot achieve. The DSP amplifier has the functions of other amplifiers, but it can also attenuate the overlapping frequencies caused by the car environment, and the attenuated frequencies can be added. It can also adjust the distance between the car speakers and the human ear. DSP power amplifiers mainly have delay processing, EQ adjustment function, and frequency division function, which can adjust defects that cannot be physically adjusted in the car, completely improve the complex audio environment in the car, and make the sound quality hierarchical
4, Car audio horn
Professionally referred to as a speaker, the speaker is just a colloquial term. As a restoration device in car audio, the restoration of sound channels is the most important component that affects and determines the performance and sound quality of car audio. Car horns can be divided into tweeters, mid-range speakers, and subwoofers based on their frequency response; According to the type, it can be divided into set speakers and coaxial speakers. Coaxial speakers are full frequency speakers that can respond to all frequencies, with high, medium, and low frequencies on the same axis; The set of speakers is an independent split design and equipped with a splitter, which can achieve better full frequency response and sound field distribution design.
5, Car audio subwoofer
A subwoofer is the heavy bass part used to compensate for low frequencies and reproduce ultra-low frequencies, and is divided into active subwoofers and passive subwoofers. A complete sound system, subwoofer is also indispensable, its function is to make the low frequency of the entire sound system have better output, and the music is more full. However, one thing is that subwoofers consume a lot of power, which may reduce the lifespan of the battery!
6, Car audio cable
When it comes to cables, many modifiers only consider them as ordinary accessories. In fact, if you want a good audio system, it is also closely related to the cables. No matter how good the audio equipment is, without good cables to assist, the sound quality and effect will be greatly reduced. The wire is mainly divided into three parts: power line, speaker line, and signal line. When selecting the wire, not only should it have good quality, but it should also be matched with equipment such as speakers and amplifiers. The wire also determines the final sound quality effect.
Common knowledge on car audio modification
1. The power of the amplifier should be greater than 1.5 times the power of the speaker.
2. The distribution of speakers should be balanced based on the frequency configuration of the entire sound field.
3. The current supplied to the power supply should be greater than twice the total power required.
4. The bass should be rich and powerful, the mid bass should be full and round, the mid high pitch should be bright and pleasant, the high pitch should have rich details, and the overall music should have clear levels.
5. Whether the speaker is difficult to push or not depends on its sensitivity. High sensitivity is better.
