In the speaker, there is a very humble part, say it is humble, because it can not be found on the surface of the speaker, the average person in addition to want to understand the speaker, almost no attention to it. And the speaker doesn't work without it. It's a frequency divider.
When playing music, due to the ability and the structure of the speaker unit itself restrictions, only a speaker to cover all frequencies, and if the signal without the full frequency distribution directly into high, medium and low unit, the unit outside the range of frequency response of that part of the "signal" excess will harmful to signal reduction in normal band, It may even damage the high and medium tone units. For this reason, designers have to divide the audio spectrum into segments and use different speakers for each segment. This is the origin and function of frequency divider.
Frequency divider is the "brain" in sound box, it is very important to the quality of sound quality. The music signal output by the power amplifier must be processed by the filter component in the frequency divider, so that the signal of specific frequency of each unit passes through. In order to effectively modify the different characteristics of the speaker unit, optimize the combination, make each unit give full play to its own potential, and make the frequency response of each frequency band smooth and sound and image phase accurate, it is necessary to design the frequency divider of the speaker box scientifically, reasonably and strictly. Ability makes high, medium, bass play the musical hierarchy that comes out clear, in time, anacreontic, comfortable, broad, natural sound quality effect.
From the working principle, the frequency divider is a filter network composed of capacitor and inductor coil. A high pitch channel only lets high frequency signals through and blocks low frequency signals; Bass channels, on the other hand, allow only bass to pass through and block high frequency signals. The mezzanine channel is a bandpass filter, which blocks both the high and low frequency components, except for the frequencies between the two frequency divisions, one low and one high.