The crossover used in the car is basically the same as the crossover used in the home and other occasions.
Crossover conceptActive partial and passive partial: There is a big difference between the two. The active partial is used between the pre-stage and the post-stage. The purpose of using OPA to connect the component sound requires multiple post-stages. The passive crossover (hereinafter referred to as the crossover) is the crossover placed in the speaker, and inductance parts are used to connect the component sounds. However, it can be used only with a later stage.
Qualcomm: Only let the signal higher than the crossover point pass through, and the signal lower than the crossover point will fall according to a certain slope (12dB or 18dB), usually used in the tweeter;
Low pass: Only let the signal lower than the crossover point pass, and the signal higher than the crossover point will fall at a certain slope (12dB or 18dB). Usually used in the woofer or subwoofer SUB;
Bandpass: There are two crossover points, high and low, only let the middle high and low set frequency pass, other frequencies are cut off. Usually used in MIDRAGNE.
DIY installation: The installation of the electronic crossover only needs to install the power cord, ground wire, activation wire and RCA signal wire according to the installation manual. The activation wire can be activated by the activation wire REM used by the amplifier.
Tuning: You have to reset the louds and bass.treble of the main unit to zero first, and all other adjustments of the previous level must also be reset.
Crossover functionSince it is impossible to use a single cell to be responsible for the regeneration of all frequency bands, but a single cell must be responsible for some frequency bands to form a complete frequency band, how to separate the frequency bands responsible for each cell has become a very important topic. Therefore, the crossover is a mechanism for the allocation of frequency bands. There are two ways to allocate. One is that when the original signal is output from the source of the signal, it is first cut according to the predetermined frequency, and the signal is transmitted after the cut. As for the amplifier, the amplifier performs the signal amplification and the drive is responsible for regenerating the unit of the frequency band. This crossover design method that requires the use of many electronic components is called "electronic" crossover or "active". -Style" crossover. Another method is to directly send the original signal to the amplifier for full-band signal amplification and then output to the crossover when the original signal is not cut. Then the "passive" crossover will cut the frequency and send it to the frequency band. The role of the sounding unit to sound the crossover
The function of the crossover is equivalent to the "brain" in the speaker, and the crossover plays a vital role in the sound quality. Using a frequency divider can send high-frequency signals to the tweeter, and low-frequency signals to the woofer, so that the high and low-frequency signals go in different ways, and maximize the advantages of the working frequency band of the respective speakers to ensure the speakers of different working frequency bands. Give full play to make the playback characteristics of each frequency more balanced. So it is not difficult to see that a well-designed crossover can better display the characteristics of the unit to make the sound play a better quality.
The frequency divider used in the car and the crossover used in other occasions are essentially the same-the music signal output by the power amplifier must be processed by the filter components in the frequency divider to allow the signals of the specific frequency of each unit to pass. It is necessary to design the speaker's frequency divider scientifically, reasonably and rigorously to effectively modify the different characteristics of the speaker unit, optimize the combination, make each unit maximize its strengths and avoid weaknesses, fully display its own potential, and change the frequency response of each frequency band. It has to be smooth and accurate in phase of the sound and image, so that the high, medium, and low-pitched music can be played in a clear, well-matched, clear, comfortable, broad, and natural sound quality.
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