La rosite Leya was not the first to make digital broadcasting equipment. It was a European fever audio family. Its founder was also a top player of medieval equipment. For decades, he was infatuated with bugle horn, Danrui 300B, opener and black glue system. However, under the influence of high-end sound and music, the successor son who has established a correct concept of sound since childhood hopes to integrate the world thinking into his father's brand, and he is determined to develop the Internet music world. Therefore, La rosite brand was used to launch digital broadcasting, transistor power amplifier and speaker product line, which not only has the traditional gallows and speakers, but also has the advanced serial stream digital broadcasting system. In terms of modern ideas, there is no conflict with them. After more than ten years of testing and comparison, La rosite has solved the problem that computer audio affects pure tone playback. The latest black hole II black hole data broadcast and decoder system adopts modular design, combines special transformers and capacitors to create a quiet operation platform, then uses multi isolated multi bit converter, and finally, a minimalist analog output circuit, La Rosite hopes to create a new era digital audio server platform that can conquer traditional analog players.