Divider is a circuit within the speaker device, different bands (treble, bass) sound signal to distinguish, respectively, to the amplification, and then sent to the corresponding band of speakers and then replay.
Suitable for listening to music in the room, the keyboard and violin, guzheng, pipa, rain and so on, the voice of nature.
Use this crossover network to your audio system for separating high frequency, midrange and low-frequency. it delivers high frequency to the tweeter and low frequency to the speaker.