1, EV, 1927 founded the brand, 1984 entered the China market. Is one of the founding enterprises in the professional audio industry, and its technology, design and products are all standards in the industry.

2.RCF RCF is a very well-known listed brand in Italy, and it is also a scientific research institution in the audio field that has obtained the official MIUR of the Italian government.

Bose & JBL, both of which are American brands, are well-known in China, and they are also very commercialized.

4, Bosch, this brand involves many products, refrigerators, washing machines and so on. , not just audio, audio is only a small part of its business.

5. Yingyinjia is a relatively unpopular brand, but the audio engineering industry has always been in the forefront, and the appearance, application flexibility and user interface personalization of audio equipment are all standard.