What is a divider?

Divider refers to different frequency bands of sound signals, respectively, to distinguish between the zoom in, and then sent to the appropriate band speakers in a replay. In high-quality sound playback, require electronic crossover. It can be divided into two kinds: (1) power divider: power amplifier, the setting in the speaker through LC filter network power amplifier output power audio signal into the bass and treble, Alto, sent to the respective speakers. Connectivity is simple, easy to use, but the power, audio, generate cross-Valley of distortion, its parameters and speaker impedance has a direct relationship, and the speaker impedance is the frequency of the function, and the nominal value deviates from the larger, so the error is large, is not conducive to adjust. (2) e-modulus prescaler: connect the audio signal with frequency of the device, power amplifier, the crossover and then used independent power amplifier, each audio frequency band signal to zoom, and then sent to the corresponding speaker units. Due to current smaller so they can lower power of electronic filter implementation, adjustment easier, reducing power consumption, and interference between the speaker unit. Makes signal loss is small, the sound quality is good. But in this way, each with a separate power amplifier, high cost, circuit structure is complex, for professional sound reinforcement systems.