What do you think of the stereo and how to distinguish it?

buying a speaker is not about the price, just the right one. Here are some misunderstandings about buying a speaker. Misunderstanding 1: Is the sound quality of an expensive speaker necessarily good? It is usually said that the sound quality of a speaker is determined by the price, but the price is not the only criterion for buying a high-quality speaker. What matters is the sound quality of the speaker, because the price and sound quality are not necessarily proportional. That is to say, it does not mean that if you pay twice the price, you will enjoy twice the sound quality. Even the CPU is the same. You may not be able to buy a CPU with double frequency if you pay double price. Even if the frequency is double, its performance may not be double. This truth is even more obvious when used in speakers. Personally, the so-called "excellent sound quality" has always been the patent of those "audiophiles", and the description of sound quality by those feverish masters is difficult for the author to understand, but some speakers are not very fancy in appearance, but the sound quality can be intoxicated by the author, and the price is not expensive! Myth 2: You can't just look at advertisements when buying speakers, but also look at the actual effect. Nowadays, there are many brands of multimedia speakers in the market, and it is inevitable that there will be a mixed bag of fish and dragons when there are many products. It is inevitable to supplement the overwhelming advertising and some concept hype. Some manufacturers are trying their best to emphasize the differentiation of their brands, and the shape design is changing. In fact, they are often old wine in new bottles, and many places are not satisfactory. Several brands of speakers I have seen not long ago, the functions introduced in the promotional materials look very attractive, but after trying them out, I found many problems, which are far from what the promotional materials say! A power is not enough, and distortion occurs when the volume is adjusted to half; Another screw for fixing the speaker has damage marks. It can be seen that it was not installed by the machine, but was manually screwed on, so don't blindly trust the speaker advertised, and avoid making mistakes, and it will be too late to regret it! Of course, everyone has different auditory feelings about the speaker, so when choosing a speaker, it is better to give priority to personal feelings, so that the speaker you buy can be in line with your personal taste, and what friends and businessmen recommend may not be suitable for your own style. Myth 3: The sound-absorbing cotton in the speaker does not represent the level of the grade. Many consumers think that the speaker without sound-absorbing cotton is a low-grade speaker. Experts say this statement is not very scientific. Sound-absorbing materials only play two roles in the sound box. One is to eliminate some resonance and staining of the sound box; The second is to reduce the volume of the speaker appropriately, which has nothing to do with the grade of the speaker. Some people think that adding fillers to the speaker is a panacea, which is a big mistake. As long as the box body of the speaker is designed reasonably, has no obvious resonance, and is large enough, high-quality speakers can be made without filling materials. There are many successful examples in the field of speaker production all over the world. It is beneficial to the transient characteristics of the speaker box without filling materials. After careful design and careful processing, the speaker has basically reached an ideal state when it leaves the factory. In this case, changing the presence or absence of filling materials in the speaker at will will have many effects on the playback of the speaker, and most of these effects are negative. Too much filling will cause the sound to be dull, the transient characteristics are poor and the speaker is weak. Myth # 4: Will the wooden speakers be good? When I enter the electronic market, I will always meet enthusiastic sales ladies who recommend it to me, such as what kind of wooden speakers are made of, how to ensure the quality and so on. Buying a speaker is not buying furniture. If you buy furniture, good wooden furniture can be used as an important criterion to measure the quality of the product, because good wooden materials mean firmness, durability and even highlight the owner's taste. But it doesn't matter much about the speaker, because the original wooden board has the nature of resonance. When the speaker works, the wood itself will produce sound, which will affect the sound quality expression of the speaker. Therefore, it is unfounded to say that the wooden speaker is a good speaker. Myth 5: Don't judge a box by its appearance, it's important to look at the details. When we buy a speaker, the most important thing is to look at the manufacturing process, box material, box sealing, speaker caliber and quality, and even the frequency divider can be seen from the inverted hole. First look at the external layer of the speaker, whether there are obvious bubbles, scratches, warping and other phenomena, whether the joints are neat, and whether some plastic products in the box are rough, such as whether the wall of the inverter tube is thick and the surface is smooth. From these nuances, the quality orientation of the whole box can often be seen. In addition, carefully identify the material of the cabinet from the joint of the panel of the speaker. If you can't see it from the joint, you can also knock on the wall of the cabinet cavity with your fingers. If the board is thick and the density is high, the sound should be low and there is no obvious cavity feeling. Finally, don't forget to uncover the dust cover and look at the manufacturing process of the speaker, especially the manufacturing process around the voice coil cover protruding from the middle of the speaker. If it is not well adhered, you can often see the traces left by the glue after drying; Let's see if there are any signs of damage to the screws that fix the speakers. If there are, they are not installed by the machine, and the quality will definitely be discounted. When auditioning, at least adjust the volume button to 3; 4 places, see if the power is enough or there is any distortion. At the same time, touch the speaker with your hand. If you feel that there is wind blowing out behind the box (except for the inverted box hole), it means that the speaker is not well sealed.