Whether it is a car audiophile or not, these metal-filled equipment will be attracted to its unique magnetic properties. When it comes to car audio conversion, a topic that I will not talk about is the amplifier. Today, please follow the limit sound change to explore the mystery of power amplifier selection!
It is not enough to choose the simple parameters given by the manual only according to the manual. It should be determined according to the whole sound system. It is also necessary to listen to the opinions of other users or professionals, and select different models and brands of power amplifiers according to different purposes. According to different purposes, it can be roughly divided into the following categories:
1. Amplifier specially designed to promote the woofer: Built-in infrasound filter eliminates the need for an external filter.
2. Amplifier with equalizer: The tone can be adjusted according to personal preference or different compartment space.
3.5-channel power amplifier: Usually use 2 channel or 4 channel power amplifier to push the front and rear speakers, the woofer is driven by another power amplifier, so the occupied area is too large, and using a 5-channel power amplifier, a power amplifier Can solve the problem.
4. Multi-chip X-card power amplifier: The unique X-card provides a variety of crossover options for power amplifiers: Qualcomm, Bandpass, Lowpass, and even Super Audio.
5. Electronic Splitter Modular Power Amplifiers: These control modules let you select which signal will go to the power amplifier and to the RCA output of the power amplifier, selecting the desired frequency and the point of the split. By replacing the module, one power amplifier can be used as a diversified power amplifier.
Why should I change the main unit and speakers for the car audio? Why do I need to install the amplifier? Before talking about the amplifier, the first thing you need to know is, what role does the power play in a car audio system? The power amplifier is also called a power amplifier. It plays a role in the whole set of sound system, one is responsible for the output of the host signal, and the other is to provide the signal output to the speaker.
So, isn’t the amplifier important? Let me say that! Some riders just replaced the speakers, directly driven by the original car, or replaced the main unit and speakers, but after a period of listening, I found that the pronunciation of the speakers has a state of powerlessness, far from the imaginary effect. In fact, this phenomenon is caused by the lack of power amplifiers.
It should be known that the whole vehicle is forced to control the factory cost. The main car with the original car is often used in general, and its output power is small. Even if you change the professional speaker (the power required by the professional speaker is large), use the original car host. If the speaker is pushed, the supply of the signal is not enough. The original car's main output power is between 15W-30W, and the minimum power required by the professional speaker is more than 30W. Therefore, it is no exaggeration to say that the main unit directly pushes the speaker. At most, the horn can play 40% of the effect. Therefore, it is unrealistic for the rider to ask for too high without installing the amplifier.
Of course, some riders also know the importance of the amplifier. After the second upgrade, the amplifier is installed. When the system is equipped with an amplifier, it is obvious that the pronunciation of the speaker has been significantly improved. You will find that the music that you can't hear before the amplifier is added, after the amplifier is installed, all the details of the instrument are displayed, and it is very layered, especially the drum sound, which is weak before the amplifier is added. Powerless, after the installation of the amplifier, the performance is strong, flexible, and realistically restore its nature.
Here, simply say the classification and usage of the power amplifier: according to the channel: mono, two channels, four channels, five channels, and so on. Mono is mostly used to push the subwoofer. Mono has only one channel output, and it is also a bass amplifier. The mono amplifier is characterized by high power. Two-channel push two-way speaker, of course, can also be used to push the subwoofer, such as the two channels bridge (parallel), get high power can be used to push the subwoofer, four-channel amplifier used to push the suit Speakers, such as two-way, three-way, coaxial speakers.
From a professional point of view, the output power of the amplifier must be greater than the power of the speaker. For example, using the best point, the power is amplified to half of the power of the speaker. Because there is only enough power output, the speaker can be optimally played. Some enthusiasts like to compare the power amplifier in the car audio system to the car engine. Only when there is enough power, the car will run smoothly and run fast.
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