2. Common stage speakers are JBL, EV and Budweiser. In America, there are Peak, Crown and Harman Kardon amplifiers. In the United States, the mixer is Yamaha in Japan and sound arts in Britain. Microphones belong to Shure, Sennheiser, Germany, Iron Triangle, etc. There are many imitations in enping city, Guangdong, so you should pay attention to distinguish the authenticity when buying them.