If the speaker unit is the soul of the speaker, then the crossover is the blood of the speaker. It divides the entire audio signal into medium, high and low frequencies and sends them to different speaker units, so that the speaker unit only processes the frequency bands where it is best at. In the design of the speaker, the crossover is also the most tested factor for the sound designer. The reason why many speaker production masters are affirmed by everyone is because of their achievements in crossover theory and design. After the speaker is determined to the cabinet, the later adjustment is carried out by the crossover, so the design of the crossover carries the designer’s own philosophy of sound. Today, I will take you through the hero behind the sound of the crossover.
The crossover can divide the frequency into the following types
Two-way high, low
Three-way high, medium and low
Four-way high, medium, low, ultra low
The CROSSOVER can be divided into one band frequency division, two bands frequency division, three bands frequency division, four bands frequency division, etc. according to the type of filter:
Simply put the difference in frequency division for different orders is the difference in roll-off slope and phase. The roll-off slope of the one band frequency divider is 6dB / Oct, and the phase of the signal is reversed by 90 ° after passing through the one band crossover; Turn 180 °, and so on. It should be noted that the four bands frequency division is not always better than the one band frequency division. Although the four bands crossover design is more complicated than the one band crossover, what kind of crossover is used depends on the speaker and cabinet. At the same time, there must be phase considerations. Normally, the woofer uses one band crossover, while the midrange and treble units use higher-order crossover.
Post time: Apr-15-2020