Solutions for Poor Sound Quality After Car Audio Installation
What are the reasons for poor sound quality after car audio installation? They include the following points:
A. Installed equipment is a low-end product
Although it may be a branded product, every brand has low, medium and high-end equipment. Generally speaking, low-end equipment is very cheap. For example, a low-end single-disc CD player plus two pairs of low-end speakers costs only more than one thousand yuan. It looks like all branded products, and customers easily accept them. However, this point is often an easy place for some merchants to take advantage. Customers only see branded products without knowing that they are low-end products and that the equipment does not match, especially low-end speakers. Some even don't have tweeters and are generally used with small power tape players. The power is relatively small, the sensitivity is relatively high, and distortion will occur when the volume is slightly turned up. It is difficult to show good sound quality when paired with a CD player. Mainly, the high-frequency range performs worse, hoarse and ear-piercing, poor control of mid-bass, sometimes even "blasting", producing a "pu pu" sound. However, the sound quality of low-end products is poor, and some merchants won't tell the customers because they take advantage of the customer's desire for cheapness. They want both cheapness and brands, so such equipment is matched in this way. Often, such configurations also bring merchants considerable profits. Some customers feel it doesn't sound good after installation but can only swallow their frustration silently. When they come to me for debugging, I say: "The equipment cannot reach the standard, just like a person born with heart disease, it is impossible to treat them as normal people." Generally, such people do not want to spend money again to change to better equipment, and I am powerless to improve the sound quality.
B. Debugging technology
Generally, people engaged in the car audio industry have a low level of education, and even less knowledge of car audio theory. Most people think installing car audio is a simple matter. In fact, it is not. To install a good sound system, one needs comprehensive qualities and theories, including car circuits, electrical engineering principles, acoustics principles, installation technology and craftsmanship, music theory knowledge, etc. As the saying goes: "Experts listen for subtleties, while laymen listen for excitement." Some people think that loud bass-heavy sound is good. A truly good sound system should have no distortion even at high volumes, with transparent and layered sound, solid and non-dispersed bass. Some installers can't even read the equipment instructions, don't know how to use the equipment, haven't listened to symphonies or real instrument sounds, so how can they adjust the tone? How can they identify problems? And how can they make the sound system perform well? This requires the debugger to be an audio enthusiast, who can adjust the sound system to its best state during tuning. Therefore, debugging is the final important step in the car audio system. Car audio quality evaluation and sensory identification
C. Mismatch between installed equipment
Not all branded equipment guarantees good results. One customer had all branded equipment installed, with twelve speakers, three subwoofers, and three amplifiers. The volume couldn't be turned up much, and there was noise. The design dimensions of the subwoofer box had errors. The main problem was unreasonable equipment matching, improper use of equipment, and very poor installation and debugging techniques. These issues prevented the overall system from functioning properly. After our company re-matched and re-installed the equipment, basically using the original equipment, the sound effect was completely renewed. The car owner was very surprised by the performance of his audio system and fully realized the difference between professional and amateur techniques. A good sound system configuration is not just about simple matching; more importantly, it is about maximizing the function of each piece of equipment and tapping into its potential. Some people think that using the same brand of equipment is good. Here, I would like to briefly explain what being an audio enthusiast means. I think being an audio enthusiast is not just about using the best equipment, but rather using some quality equipment whose price is not necessarily very expensive. Through reasonable matching, professional installation, and careful debugging, the equipment can perform at its best, surpassing its own value and even comparable to branded equipment. I believe that anyone with such skills, regardless of the price of the equipment they install, should achieve the best effect within that price range.
D. Installation of counterfeit and inferior equipment
Nowadays, many fake branded equipment and many domestic miscellaneous brands are sold in the audio market without technical certification and not meeting national quality standards. The technical indicators of such equipment are very low, and the quality is very poor. Some machines produce noise when turned on, and background noise when playing music. This is due to poor signal-to-noise ratio caused by inferior circuits. There are also safety hazards. Some car owners install a set of audio equipment at a lower price, which looks like a lot of equipment, but basically all are counterfeit and inferior products. It is foreseeable that the sound quality of the audio system composed of these products must have noise and music signal distortion. Such equipment generally has no technical indicators, some have no origin and manufacturer, some pretend to be American, Japanese, or branded products. These products have poor frequency response and must have defects when playing music. They cannot fully present the music, especially when an active subwoofer is installed, causing confusion in the overall sense of music, even unclear like a pot of porridge. Good audio quality should have clear layers of high, mid, and low frequencies, like a clear lake water. This is like comparing half a basket of rotten peaches with one bite of a fairy peach. Installing more counterfeit and inferior equipment is not as good as installing fewer high-quality equipment. How to identify? 1. Check if the packaging has detailed instructions: origin, manufacturer, specifications, etc., 2. Whether there is a distribution authorization letter, 3. Key is whether the sound quality meets the equipment's indicators, 4. How is the sound effect of the system?
E. Poor installation technology and craftsmanship
Car audio is a semi-finished product that requires installation by personnel trained in car audio to ensure audio quality. Some stores use untrained personnel who simply connect the equipment, making mistakes in sound field positioning and phase. Amplifiers are installed without fuses, which could cause fires. The installation speed is fast, not following standard procedures, using poor quality wires, and rough workmanship. The consequences are poor sound quality, high failure rates, and short equipment lifespan. The result of seeking cheapness is cutting corners.
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