According to the general configuration, two two-frequency dividers are enough. In some high-end models, because they are equipped with a 5.1 high-fidelity system, the front and rear sound fields are equipped with tweeters. For example, BMW's 7 series requires four two-frequency dividers. Frequency divider or three-way frequency divider;
If you use two crossovers, the front sound field uses a set of speakers, that is, two mid-bass, which are installed in the two front doors, respectively; and the two trebles are installed in a suitable position about the level of human ears. The function of the frequency divider is to divide the sound sent to the front sound field from the CD player or power amplifier into two, one is for the mid-low frequency signal to the mid-woofer; the other is for the high-frequency signal to the tweeter. Because there are two sets of mid-bass + treble on the left and right of the front sound field, two crossovers are needed, one on the left and one on the right;
Generally, coaxial speakers are installed in the back row of car audio, that is, the midrange and tweeters have been integrated into one speaker, and a capacitor is also connected to perform a rough frequency division, so the rear sound field does not need another frequency divider. Just connect the signal from the CD player or power amplifier to the speaker.
The frequency divider is used for split speakers, so that it can more distinguish the sound signals of different frequency bands, amplify them separately, and then send them to the treble and mid-bass respectively for playback. When high-quality sound is reproduced, electronic frequency division processing is required. Split speakers are generally used in the front sound field, that is, one set for each of the left and right doors in the front, a total of 2 dividers.
A crossover can connect several speakersThere are also many types of frequency dividers, such as high-pass, low-pass, band-pass, and band-stop. From the perspective of music, the divider is divided into high frequency, low frequency, and intermediate frequency. Because if the entire audio range is used to broadcast the signal with one speaker, some auditory deficiencies will occur, such as the high and low sounds cannot be adjusted separately, or are harsh, or low, or lack of liveness, or cannot highlight solo or solo. And so on, so there is a need to separate the frequency bands, which requires the use of frequency dividers to divide the frequency bands.
Since the frequency divider has the above-mentioned special functions and tasks, it cannot be connected to the speaker casually. Usually the speakers are divided into three groups and connected to the corresponding crossover output: tweeter, woofer and midrange speaker, and even a subwoofer (the so-called subwoofer) can meet the needs of advanced appreciation. .
The connection of a typical frequency divider and speaker is shown in the figure:
Audio is a general term, which is a combination of power amplifier and speakers. The crossover is installed in the speaker. Used to divide the signal input to the speaker to different speakers (treble, midrange, woofer), that is, through the crossover, the tweeter only inputs the treble to it, filters out the bass, and the woofer only inputs the bass to it , Filter out the treble. Will not accentuate the bass.
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