The frequency divider is to separate the treble from the bass, or to separate the treble, midrange, and bass. First of all, we must understand the function of the crossover. The four speakers you are talking about may be one for each of the four doors. If so, that is, the two front doors are mid-woofer speakers, and the back door is coaxial speakers. In this case, adding the divider is meaningless, or adding it doesn't work. Because you don't have a tweeter. do you understand? The normal plan is like this: two mid-bass + two trebles + two crossovers at the front door. Two coaxial speakers at the back door (or two mid-bass + two tweeters + two splitters). Then do the shock and sound insulation of the door. Only in this way can the effect come out. Many mid-to-low-end family cars don’t have high pitches, so it’s best to focus on high pitches. Achieve the balance of high and low sounds, so as to achieve the desired effect. Car audio crossover is a kind of audio equipment that can divide the sound signal into several frequency bands. For example, the two frequency divider is composed of a high pass filter and a low pass filter, and the three frequency divider adds a band pass filter. Device. We know that the frequency range of normal audible sound is in between, and we hope that only one speaker can be used to ensure the transmission. Such wide-frequency sound is difficult to achieve, because it will have various technical problems and difficulties. Therefore, under normal circumstances, high-quality playback systems, in order to ensure the frequency response and bandwidth of the reproduced sound, are mostly used in the professional field to reproduce the high and low sounds separately, and when the high and low sounds are used to broadcast the sound, it is inevitable. To use a frequency divider. Frequency dividers can be divided into different types according to different classification methods: According to the circuit connection mode of each unit in the frequency divider, it can be divided into: series frequency divider and parallel frequency divider. Nowadays, parallel frequency dividers are mostly used in the industry. The main advantage is that each of the multi-channel speakers can be regarded as an independent part. If a series frequency divider is used, any part may affect the high-pass and low-pass characteristics. The frequency dividers discussed in this article are all parallel frequency dividers. According to the level of high and low, it can be divided into high-level frequency divider and low-level frequency divider. The high-level frequency divider is also what we usually call a passive frequency divider, which refers to the high-power signal amplified by the power amplifier, and then the passive frequency divider is divided and output to a specific unit. Low-level frequency divider is also called active frequency divider, which is composed of active electronic high-pass and low-pass filters, and is generally installed in the front part of the host or power amplifier. Other classification methods of frequency dividers are divided into high-pass, band-pass, and low-pass frequency dividers according to the replay frequency band. According to the electronic components of the frequency divider and the slope of attenuation, it can be divided into first-order, second-order, and third-order. And a fourth-order frequency divider.
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How many crossovers are needed for car audio? what's the effect?
Car audio speakers are related to the number of crossovers