济南汽车音响改装http://www.sdcarmusic.com/专家强调音箱是整个音响系统的终端，其作用是把音频电能转换成相应的声能，并把它辐射到空间去。音箱的性能高低对一个音响系统的放音质量是起着关键作用。

音箱之所以存在箱体主要是为了防止扬声器振膜正面和反面的声波信号直接形成回路，造成仅有波长很小的高中频声音可以传播出来，而其他的声音信号被叠加抵消掉了。音箱的物理模型是在一块无限大的刚性障板上开一个孔，安装扬声器，这样就能保证扬声器正面和反面的声音信号不会形成回路，造成音波回路。但实际使用中，音箱是不可能做成无限大的，因此，人们在扬声器后面用障板形成一个密闭的空间，保证音波的正面传输。
Mainly exists speaker diaphragm of the speaker cabinet in order to prevent the front and back loops are formed acoustic signal directly, resulting in only a very small wavelength of high-frequency sound can be spread out, while the other sound signal is superimposed on the offset. Physical model of a speaker is in an infinite rigid baffle open a hole, install the speakers, so you can ensure that the front and back speakers sound signal does not form a loop, causing sonic loop. However, the actual use, the speaker is not possible to make infinite, so people in the back of the speaker to form a closed space with a baffle to ensure the transmission of sound waves in the front.
   
济南汽车音响改装http://www.sdcarmusic.com/专业人员提醒大家音箱密闭后由于大气压的问题，音箱的箱体是越大越有利于低频声音还原，所以，一般音箱的容积是根据中低音单元的扬声器尺寸计算出来一个折中的数据。可很多环境还是不允许有太大的箱体，人们为了进一步缩小体积，又根据声波的特点及加强低频声波重放的要求设计了箱内障板、倒相管、共振腔等，主要是为了在低频频段对一定波长的声音信号进行增强，并进一步减少大气压力对声音还原的影响。
After the speakers closed due to atmospheric problems, speaker box is bigger and more beneficial to low-frequency sound reduction, therefore, generally the speaker volume is calculated according to the size of a woofer speaker compromise data. Many environment may still not allowed to have much of a box, people in order to further reduce the volume, but also according to the characteristics of sound waves and enhance low-frequency sound reproduction requirements of the design of the tank baffle, inverting the tube, resonator, etc., mainly to certain wavelengths in the low frequency band of the sound signal be enhanced and the atmospheric pressure to further reduce the effects of sound reduction.