How about the acoustics of American salons? Who can introduce (urgently needed)?

Very good, it is an old-fashioned audio enterprise with a long history. In the early 1990s, Sharon and the famous Foshan Diamond Audio Equipment Factory cooperated to produce the "Diamond" brand combination audio, which was widely known. Because of its excellent quality, it sells well at home and abroad, and its popularity is not inferior to many foreign brands that have entered the China market at that time, which makes Chinese people proud.