Also a year when the Spring Festival, people are used to a busy year for the home, repairing point in the year the family silver, speaker is also a lot of friends years ago to purchase the family silver, after all, a rare seven-day holiday at home, Tingting Ge Wo see another speaker thought of the film is also a good way to relax. As IT Stores, the speaker product quite a mixed bag, many users are confused, not knowing how to identify strengths and weaknesses of their quality, large Chinese New Year back if the buy inferior products, over the all Wohuo. To address the concerns of users in this regard, Xiao Bian, under today to give users of the types of speakers is determined not to buy. 1, no 3C certification mark can not buy3C certification is "ChinaCompulsoryCertification" stands for both the "China Compulsory Certification." It is our government to protect consumer safety and national security, enhance product quality management, in accordance with laws and regulations to implement a product conformity assessment system. Is our government in accordance with the relevant WTO agreements and international rules to protect consumers and animal and plant life, personal safety, environmental protection, protection of national security, in accordance with laws and regulations to implement a product conformity assessment system. Where the inclusion of compulsory product certification directory of products, must be designated by the National Certification of qualified certification bodies to obtain the relevant certificate and certification mark prior to his factory, import, Sell And business establishments in use.3C signs are generally attached to the product surface, or by molding pressure on the product, look carefully will find many small diamond-shaped "CCC" markings. 3C behind each symbol has a random code, each random code has a corresponding manufacturers and products. Management center certification marks issued in payment of compulsory p roduct certification mark, the code has been entered into the computer database, the corresponding products, consumers can CNCA compulsory product certification mark system security check code to search. Compulsory product certification system on August 1, 2002 come into operation, in which speakers are classified as "audio and video equipment" category, is the first to be included in the 3C product directory. So you want to buy the speakers if without 3C certification mark, then you have to consider that, because the manufacturers need to provide certification for 3C plant organization chart, flow chart of the certified products, routine testing of key equipment, products assembly map Electric Schematics, many small factories workshops where workers may be assembled, do not have to apply the conditions, if any can be applied for certification may not be off the rigorous testing session, so many small workshops to bypass authentication altogether direct listing. These black speakers, low prices, huge profits, many are also willing to sell these black JS speakers, so the market is still a lot of these speakers, as consumers in the purchase must be more careful, no resolute 3C certification mark Do not buy. 2, copying the appearance of hot-selling products can not be boughtA speaker from the appearance of mold design to the voice unit consumes a lot of manpower, material and financial resources, large and small domestic market, thousands of speaker brands, real power and engage in research and development funds on so few, most manufacturers are do not have enough income to support the huge development costs, plus the copy from the draw-down trend, so most domestic manufacturers are imitating. Years of experience tells us that imitation, imitation can only imitate body, the inherent quality of the product is an imitation not come. The first is technical, not professional and technical personnel, speakers can not be adjusted; no professional equipm ent, the assembly accuracy of the precision of less than the original product, the key components of production can not be replaced with inferior products. Furthermore, manufacturers of sales is small factories can not match, with sales of large purchases of components also bring large, high-volume procurement unit was declining so components can be imitations on the market in general than the original price is much lower and the manufacturers of the profit margin, the gap is too great, these manufacturers want to profit only the consumer can not see the internal start with, using thinner plate, but poor speakers, cheap Amplifier, Op-amp chips, transformers...... Therefore, these speakers, consumers can not buy, own, or do not consider the use of imitation goods, more than 100 have spent more than a little money to buy a genuine, Chinese New Year of the map were at ease and comfortable.
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