1, judging from the appearance: enter the horn part number on www.ebay.com (all auto parts have part numbers, and the horn is no exception). This inspection can find the real appearance of the horn (this method is not suitable for high imitation). General Jieyang goods may be judged by this method. They all have ready-made horns, and then they just need to print out the labels of the horns. This is the primary stage of false angle.
2. From the price point of view, genuine speakers are valuable, not too cheap. Someone asked 500 yuan if Berlin's voice was true, and it was unnecessary. If 500 yuan can buy the real voice of Berlin, then BOSE and other speaker factories will go bankrupt. Although the speaker is disassembled, it is still valuable. BOSE, for example, will not be inferior to 500 yuan.
3. From the sound quality point of view, the appearance of the fake horn is not true. Now all high-end car horns have fake horns. These speakers are all based on real speakers, copied by qualified manufacturers, and even have amplifiers. From the appearance, it is impossible to tell whether they are true or false. It's been almost ten years since I took apart the horn, so I can't see it. This can only be achieved through audition. The real horn sounds really comfortable. This is the requirement of high fidelity. Fake speakers usually produce a strong sense of bass speed by amplifying coils, which caters to people who don't play stereo. They don't know what HIFI is. What is even more ridiculous is that many buyers have to listen to it through mobile phone recording, and judge the quality of the speaker through recording. This is unscientific, and mobile phones can't reflect high fidelity at all. The most difficult thing to do with a fake horn is that the clear sound is turbid, distorted, inaudible and the details cannot be expressed. Listening to it for a long time will make people feel a little uncomfortable. If this kind of high imitation speaker is installed, the seller will generally say that there is no power amplifier in the car. In fact, this is not the case, but the quality of the speaker.