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    亚博体育竞彩app下载分频类型对比介绍
    2014-10-27 16:42:12

    亚博体育竞彩app下载简单的来说区分主动和被动的区别在于分频处理在功率放大之前或之后,分频在功率放大之前的称为主动,而在功放的输出端进行分频处理的称为被动分频。主动和被动都有各自的优点,声音也都有自己的优点和缺点,需要根据自己需要做选择。电子分频改善了音箱系统的阻尼系数,阻尼系数反应的是扬声器阻抗与整个扬声器前电路的总阻抗的比值,阻尼系数越高,功放输出信号的变化在扬声器上的反应也就越明显,也就是说,功放对扬声器的控制力越高。
    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.

    被动分频器制作简单、成本低廉,对功放的素质要求不高,更主要的是对功放路数要求不多,主机功放也可以推动。调试简单只需略为调整高音的灵敏度即可以得到不错的平衡感或不错的声音。如果是个DIY爱好者还可以自己改动分频点或分频斜率,以及更换元件来调整声音特点,而这也就是长期使用被动分频器最大的魅力所在。缺点是会有近百分之二十左右的部分功率损耗在分频器上,分频元件的非线性失真会直接影响音质,电感滞后和电容的超前相位差也很难处理。使功放对喇叭的控制力变差了。被动分频器频点多为固定的,不可以随便调整,对于亚博体育竞彩app下载调音个别时需要调整频点的不够灵活。
    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.

    主动分频器失真少,损耗功率传输比提高,音响系统的分析力有所提高,细节展现的更为清晰,而且对于汽车环境的变化都可以根据喇叭摆放位置调整分频点使频率衔接更为顺畅,使信号传输效率或是声音特点更具风格。缺点是需要使用多路功放驱动,成本高昂,调试不当将很有可能烧毁高音喇叭或是让喇叭提早进入衰老期影响声音表现,调试比较复杂,如果调试不当可能还不及被动分音的平衡性更耐听。调整它需要掌握比较深厚的电声学了理论,和较好的调音经验才能很好的驾驭主动分音。
    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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