USB MINI PORTABLE SPEAKER

Due to the small size and simple operation of the mini speaker, experts pointed out that mastering the correct use method can not only prolong the life of the product, but also greatly improve the sound quality and increase your own music enjoyment.

The first is the use environment. The mini speaker has a small shape, and its shell material is generally made of plastic or thin metal with very strong plasticity, so try not to place it in direct sunlight, and do not place heavy objects on the top of the speaker to avoid deformation of the shell. Also pay attention to the ambient temperature of the mini speaker. The normal ambient temperature of general audio equipment should be 18 ℃ ～ 45 ℃. If the temperature is too low, it will reduce the sensitivity of some components such as electronic tube machines. If you are in the north, keep the mini stereo away from heat sources such as heaters and heaters. Too high an ambient temperature may cause components to fail prematurely.

The second is power on and off. Some split mini speakers follow the rules from front to back when starting up, that is, turn on the main audio source such as CD player first, and then turn on the audio unit; turn off the audio unit before turning off the main audio source; if the mini audio is connected For simple amplifiers, first turn off the amplifier when it is turned off to prevent the amplifier from generating excessive rush current to damage the audio. When turning on the power, the volume switch of the power amplifier should also be turned to the minimum to avoid damaging the loudspeaker in a moment.

The third is the line connection. In order to facilitate portability, all parts of the mini speaker can be detached. For convenience, many people do not turn off the power when disassembling, so that the speaker is in a working state. As everyone knows, live plugging and unplugging of active devices is very dangerous. Even passive devices such as microphones do not promote live plugging and unplugging, because the speaker terminals are generally close to each other, and the speaker cables are tightly parallel. When wiring, the speaker circuit is often accidentally short-circuited. The lighter one will cause the distortion of the timbre, and the more serious will directly lead to the scrapping of the speaker device. The fourth is the volume adjustment. When using a mini speaker to listen to music, avoid turning up the volume of the speaker to the maximum when you turn it on. Since the sound components have not yet gone through the preheating stage just after turning on, the higher volume will make it work at full load in an instant, causing components Damaged, long-term this will make some internal fragile audio components invalid. Every time you use the mini speaker, it is best to warm up with soft music at a moderate volume for more than ten minutes. After the machine components are fully adapted, it is not too late to use it to the fullest.

How to buy audio

1. Whether there is a good sound test environment. Audio, as a household appliance product with the largest individual difference, needs to be carefully listened to to be better or worse, and also consider what kind of sound quality characteristics you like. However, some audio companies only provide a place to display but there is no room for you to listen, which is no different from selling department stores. The dedicated audition room cannot "beautify" the sound quality, it only provides a neutral, undisturbed space for you to carefully compare the characteristics of the system, and its smooth acoustic characteristics can fully reflect the advantages and disadvantages of audio equipment. In addition, a well-designed audition room often reflects whether the merchant understands the acoustics knowledge, the merchant's business taste and strength. Therefore, in order for you to buy a satisfactory sound, it is best to choose a business with a listening room when buying.

2. Whether the seller knows the business. If the merchant is struggling with your questions about product performance and usage, or tells you that "it's good" but doesn't know where it is, you should be careful. Because if the merchant doesn't understand it, of course, he can't recommend good products to you, and he may not even understand whether the product he bought is genuine. What kind of sales can sell big goods, the stereo must have a person who knows how to operate well. Qualified audio merchants not only understand the products they sell, but also must understand the characteristics of other commodities on the market, and can also objectively introduce you to the characteristics of different audio equipment. You can give you room for comparison based on your full reference opinions, instead of just asking "How much is to be allocated?" That is for money, not for your needs.

3. It's not enough just to buy real products. Buying a stereo is different from buying other things. It's not that as long as it's true, it will definitely be good. The stereo has a personality. If it's not a good match, it will be as awkward as a couple's "incompatible personality". For example, most power amplifiers in Japan have a cold, hard sound and a strong digital taste. It is only suitable for matching with softer and warmer speakers. If you use a product with less than 10,000 yuan, the same "cold" German speakers and the recognized "hard" JBL match, the sound will be very unpleasant or difficult to hear. No matter how much money you spend in this way, the effect will not be good. However, many merchants, including some agents of famous brand equipment, ignore this element. In order to sell their products, they often engage in some "disordered mandarin duck" matching, which is very irresponsible. In addition to requiring merchants to self-discipline, consumers should also learn about collocation knowledge to avoid blindly following advertisement recommendations. In addition, at the same price, due to different brands, their music quality is also different. It often happens that the products purchased at a high price are not as good as the products at a fair price. Therefore, understanding listening knowledge is a necessary condition for buying audio.

4. Whether it is installed and debugged on site. For many people who don't understand audio, after returning home like a piece of equipment, they are often at a loss when faced with complicated wiring, and they have no way to set up and debug the system. Some people had no choice but to buy a set of machines. In fact, some merchants who really pay attention to credibility provide free door-to-door services. It is undoubtedly very important for the merchants to be able to install and debug customers on site. They can often give you some suggestions for effectively improving the sound quality according to the acoustic characteristics of your room.

5. Have you considered the need for upgrading? Many people used to buy the audio blindly and quickly found outdated and awkward to use, but because they did not consider the possibility of upgrading, they now face the dilemma of continuing to use it unsatisfactorily or throwing it all away. At this time you will find that waste is more expensive than using high-end equipment. Some consumers rushed to buy a home theater last year, and later found that the sound quality was not good. This year, they gave the equipment to people and re-purchased high-fidelity audio, and even more consumers will "go" even if they find a purchase error, causing them to lose. The opportunity to get along with beautiful music, under the conditions of limited funds and budgets, it is not easy to buy a good sound system and how to make a reasonable mix is even more important.