The real Yamaha MG 166cx has the Yamaha logo on the right side of the front, and there is also a molded logo at the power inlet at the back, that is, it is directly printed on the shell instead of being attached. If not, it is high imitation. MG 166cx has USB function! . Yamaha P5000S, the words Yamaha should be printed with black paint on the left side of the panel, and the power is above1000W .. Together, the price is above 8000- 10000 yuan. As for which HQ doesn't know what brand, it can be said that all brands have HQ.
Good luck.