推荐回答(5个)
汽车音响改装升级改装过程中,制定改装方案有三种模式:一种是全主动(全电子分音),一种是被动分音,还有一种是介于全主动和被动之间的,称之为半主动。
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所需的汽车音响元器件
原车主机,功放,套装两分频喇叭
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按连接方式来区分
a 被动分音
一般一套套装两分频喇叭包含:一对高音,一对中低音和一对分频器。高音和中低音喇叭属于发声器件,分频器又简称分音器,有主动电子分音器与被动分音器之分。
连接方法如下图,这里音源是主机输出到功放,再从功放输出到分音器。功放应调到高通或全通状态。分音器上都有标识如何连接喇叭,一般情况TW为高音输出,WO为中低音输出,INPUT为输入源。

b 主动分音
又称为主动式电子分音器,藉由电子分音器灵活的特性可在各类段上之分频点、相位、Q值变动几时到最理想的频段调整,来克服各种车内变数,以达到车内最佳聆听环境之目的。
电子分音器是由低通、全通、高通滤波器所组成。要求主机有高音,中低音和超低音分频输出(如有需要),或者加装有这三种输出的音效处理器。在功放上也应有这三种分频输出。功放输出音源直接供给喇叭,而不经过分频器。功放上的高通接高音喇叭,全通接中低音喇叭,低通接超低音。正常情况采用全主动电子分音,一台四路功放只能带动一套喇叭。
c 半主动分音
以一套两分频和一对低音,以及一台四路功放为例,使用两路输出音源连接套装喇叭分音器,之后再从分音器连接喇叭,采用被动式分音。另外两路直接连接一对低音,采用主动分音。主要在器材有限的情况下,又想起到更好的音质效果,所采取的折中方案。
主动分音在音质整体的表现力和效果上都强于被动分音,但是所要求的器材以及对安装技术人员的要求比较高,被动分音安装方便且实用性以及经济性相对而言会好点,半主动就介于两者之间。选择哪种改装方案,要看个人的实际情况而定。
主动就是在功放前已经分好频,每个功放只能驱动相应的高音或低音单元
被动就是功放之后再分配,需要用到分频器,再分给高音和低音单元
半主动就是主动分频中含有被动分频,好比奥迪A6L前声场的三分频
汽车音响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,而不是听别人说主动好就去玩主动,更多内容可以看看中国汽车影音网里的音响知识,有详细的解说
主动.需要前级处理器.还是CD.有带主动分频这个功能.才可以做. 单独功放驱动喇叭.不需要分频器.
被动.就是经过分频器在出来..
半主动. 就是有些分频器里面可设置. 独立功放驱动喇叭..
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