This application discloses a speaker system and a speaker configuration method. The system includes: a main speaker and an expandable speaker that operate independently of each other, where the main speaker and the expandable speaker respectively play sound through respective drivers when operating independently of each other, and after the main speaker is connected to the expandable speaker, the main speaker detects and obtains parameter information of the expandable speaker for sending an audio signal to the expandable speaker according to the parameter information so that the main speaker and the expandable speaker jointly play sound, where the audio signal has a loudness information which is corresponding to the speaker system.