Why do car speakers need to replace the main unit and speakers? Today, the editor will explain to you why it is necessary to install amplifiers. Before talking about amplifiers, the first thing we need to know is what role amplifiers play in a car audio system? An amplifier, also known as a power amplifier, plays a bridging role in the entire car audio system. It is responsible for outputting the host signal and providing signal input to the speakers. So, is the weight of the amplifier important? Let me put it this way! Some car enthusiasts just replace the speakers and use the original car's main engine to drive them, or replace the main engine and speakers. However, after listening to the sound for a period of time, they find that the sound of the speakers is in a state of inadequacy, far from the expected effect. In fact, this phenomenon is caused by the lack of power amplifiers. It should be noted that due to cost control at the factory, the original host of the vehicle is often made of ordinary materials and has a small output power. Even if you replace it with a professional horn (which requires a large power), using the original host to drive the horn will not provide enough signal supply. The output power of the original host is generally between 15W-30W, and the minimum power required for a professional horn is above 30W. Therefore, it is not an exaggeration to say that using the host to directly drive the horn can only achieve up to 40% of the effect. Therefore, it is unrealistic for car enthusiasts to demand too much without installing an amplifier. Of course, some car enthusiasts also know the importance of amplifiers, and after the second upgrade, they installed amplifiers. After installing an amplifier in the system, it is obvious that the sound of the speakers has improved significantly. You will find that the musical sense that could not be heard before the amplifier was added, after the amplifier was added, all the details of the instrument were displayed, and it was very layered, especially the drumming. Before the amplifier was added, it was weak and weak, but after the amplifier was added, the performance was strong, elastic, and realistically restored its nature.

Here, let's briefly talk about the classification and usage of power amplifiers: they can be classified by channel into mono, 2-channel, 4-channel, 5-channel, etc. Mono is commonly used for pushing subwoofers. Mono only has one channel output and is also a bass amplifier. The characteristic of a mono amplifier is its high power. Two channel speakers can be used to push two-way speakers, and of course, they can also be used to push subwoofers. If two channels are bridged (parallel) to obtain high power, they can be used to push subwoofers. Four channel amplifiers can be used to push set speakers, such as two-way, three-way, coaxial speakers, etc. From a professional perspective, the output power of an amplifier must be greater than the power of the speaker. If calculated using the optimal point, it is best for the amplifier to be greater than half the power of the speaker, because only with sufficient power output can the speaker perform at its best. Some audiophiles compare the amplifier in a car audio system to a car engine, which only runs smoothly and quickly when there is enough power.