In the year of 1970, the creator of TK Sound, Tommy Yang, started his enterprise journey in New York City of USA. After professionals tried some of our early products, their acclaims brought our audio systems to some large-scale stages, and TK Sound had reached a rapid growth period. As its fame swiped through the US, TK Sound gained funds for foreign enterprises, and after 20 years of technology and fortune accumulation, TK sound started its first foreign enterprise in 1991. TK Sound set up a factory in Mexico to produce HIFI products as its first step of foreign expedition, after 7 years, TK Sound established another foreign factory in Ningbo, China to produce cable and connectors. A few years after Ningbo's development, TK Sound transferred its major production of professional audio system to Guangzhou, China, and created a branch company in China named TK Sound electronics. Until 2016, TK Sound has undergone 46 years of development, and by now, it has branch companies over the Americas, Europe, and Asia with over 10000 square meters of dustless, garden style workshops. The development center in USA had expanded to a 5000 square meters scale including countless professional trained R&D and technical personnel in recent years to ensure consumers with highquality products.