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汽車音響簡單的來說區(qū)分主動和被動的區(qū)別在于分頻處理在功率放大之前或之后，分頻在功率放大之前的稱為主動，而在功放的輸出端進(jìn)行分頻處理的稱為被動分頻。主動和被動都有各自的優(yōu)點(diǎn)，聲音也都有自己的優(yōu)點(diǎn)和缺點(diǎn)，需要根據(jù)自己需要做選擇。電子分頻改善了音箱系統(tǒng)的阻尼系數(shù)，阻尼系數(shù)反應(yīng)的是揚(yáng)聲器阻抗與整個(gè)揚(yáng)聲器前電路的總阻抗的比值，阻尼系數(shù)越高，功放輸出信號的變化在揚(yáng)聲器上的反應(yīng)也就越明顯，也就是說，功放對揚(yáng)聲器的控制力越高。
Simple, car audio distinguish the difference that the active and passive frequency division processing before or after the power amplifier, the power amplifier before the division is referred to as active, while the output of the amplifier in the frequency division process is called passive divider . Active and passive have their own advantages, the sound has its own advantages and disadvantages, you need to choose according to their needs. Electronic crossover speaker system to improve the damping, the damping coefficient is the ratio of the total impedance of the reaction of the entire former speaker impedance speaker circuit, the higher the damping, the amplifier output signal changes in response to the speaker the more obvious, but also That is, the higher the power amplifier for speaker control.

被動分頻器制作簡單、成本低廉，對功放的素質(zhì)要求不高，更主要的是對功放路數(shù)要求不多，主機(jī)功放也可以推動。調(diào)試簡單只需略為調(diào)整高音的靈敏度即可以得到不錯(cuò)的平衡感或不錯(cuò)的聲音。如果是個(gè)DIY愛好者還可以自己改動分頻點(diǎn)或分頻斜率，以及更換元件來調(diào)整聲音特點(diǎn)，而這也就是長期使用被動分頻器最大的魅力所在。缺點(diǎn)是會有近百分之二十左右的部分功率損耗在分頻器上，分頻元件的非線性失真會直接影響音質(zhì)，電感滯后和電容的超前相位差也很難處理。使功放對喇叭的控制力變差了。被動分頻器頻點(diǎn)多為固定的，不可以隨便調(diào)整，對于汽車音響調(diào)音個(gè)別時(shí)需要調(diào)整頻點(diǎn)的不夠靈活。
Passive crossover producing simple, low cost, less demanding on the quality of the amplifier, but the main thing is for large ones require little power amplifier, power amplifier can also push the host. Just slightly adjust the treble debugging simple sensitivity which can get a good sense of balance or a good sound. If it is a DIY enthusiasts can also alter your own crossover point or crossover slope, and the replacement of components to adjust the sound characteristics, which is the largest long-term use of passive crossover charm. The disadvantage is there will be about 20 percent in recent partial power loss on the divider, nonlinear distortion crossover components will directly affect the sound quality, inductance and capacitance of the lag phase advance is difficult to deal with. So that the amplifier for speaker control deteriorated. Passive crossover frequency points fixed, we can not adjust for individual car audio mixer to adjust frequency when not flexible enough.

主動分頻器失真少，損耗功率傳輸比提高，音響系統(tǒng)的分析力有所提高，細(xì)節(jié)展現(xiàn)的更為清晰，而且對于汽車環(huán)境的變化都可以根據(jù)喇叭擺放位置調(diào)整分頻點(diǎn)使頻率銜接更為順暢，使信號傳輸效率或是聲音特點(diǎn)更具風(fēng)格。缺點(diǎn)是需要使用多路功放驅(qū)動，成本高昂，調(diào)試不當(dāng)將很有可能燒毀高音喇叭或是讓喇叭提早進(jìn)入衰老期影響聲音表現(xiàn)，調(diào)試比較復(fù)雜，如果調(diào)試不當(dāng)可能還不及被動分音的平衡性更耐聽。調(diào)整它需要掌握比較深厚的電聲學(xué)了理論，和較好的調(diào)音經(jīng)驗(yàn)才能很好的駕馭主動分音。
Less active crossover distortion, loss of power transfer ratio improved analytical sound system improved, the details show more clearly, but also for changes in the automotive environment can be adjusted according to the speaker placement of the frequency crossover point of convergence more to smooth the signal transmission efficiency or sound features more style. The disadvantage is the need to use multi-channel amplifier drives, costly, commissioning inappropriate will likely burn or let tweeter horn early into the aging of the impact sound performance, debugging more complex,and may not be improper if the debug passive crossover balance more Naiting. Adjust it requires more profound grasp of electro-acoustics theory, and better tuning experience to good control active crossover.If you use a hydraulic freight elevators, people are on top of it, the freight elevator suddenly stopped when the emergence, in which case, do not panic, freight is likely to be suddenly cut off the power, be sure to press the call button inside, notice inspection personnel, do not stomp bouncing inside, etc., can shout or flick wall door and let outsiders quickly noticed, timely rescue!

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