很多人认为音响很复杂，容易出错，特别是大型歌舞表演、重要会议扩音等，即使有经验的音响师遇到重要人物特别交代后，也会出错。那么在大功率下，要达到出色
山东舞台音响效果，我们要解决什么呢？
Many people think that professional audio is very complicated and easy to make mistakes, especially in large-scale song and dance performances and important conference loudspeakers. Even experienced sound engineers will make mistakes when they meet important people. So what should we focus on to achieve excellent sound effects on Shandong stage under high power?
箱振。
Box vibration.
因为箱体振动将抵消特定频率的声压，造成失真;另一种箱振坏，它能发出特定几何噪音，这种噪音好象两块木板互相撞击发出的声音。
Because the vibration of the box will cancel the sound pressure of a specific frequency and cause distortion; The other kind of box is damaged by vibration. It can make specific geometric noise, which is like the sound made by two wooden boards hitting each other.
当然这种噪音是由于木板及生产工艺造成的，例如木板容易变形/生产工艺落后/木板在由大锯成小块时没成直线，而出现锯齿状，这样造成在胶合过程中不能完全均匀，而出现后来的噪音。
Of course, this kind of noise is caused by the wood board and the production process. For example, the wood board is easy to deform / the production process is backward / when the wood board is cut into small pieces by large sawing, it does not form a straight line, but appears serrated, which causes the noise to be generated later.
单位谐振。
Unit resonance.
由于单元结构不同，为什么要用铝盆架?在小功率下没什么特别，在大功率下，由于声浪的作用，音箱表面多少会产生振动，(当然理想的音箱设计，在大功率下音箱任何部位都不应感到振动)这种振动回传到固定在上面的单元，这时如果单元扬声器的匡架不够牢固，低音盆架也会与面板同时振动，这时音圈在磁液中的中心位置会受到破坏，造成严重失真，甚造成擦圈，后音圈烧断。
Because of the different unit structure, why use aluminum basin frame? At low power, there is nothing special. At high power, due to the effect of sound waves, the surface of the speaker will vibrate. (of course, the ideal speaker design should not feel vibration at any part of the speaker at high power.) this vibration will be transmitted back to the unit fixed on it. At this time, if the option frame of the unit speaker is not firm enough, the subwoofer will vibrate with the panel at the same time. At this time, the central position of the voice coil in the magnetic fluid will be damaged, It may cause serious distortion, or even cause coil wiping and rear voice coil burning.
为降低成本，用很薄的铁板做扬声器的盆架，音箱品质不好，这方面也是其中原因之一。通常我们在150奥搁惭厂功率的扬声器其盆架所用铁板厚度不能低于1.2尘尘。当然铝盆架是较好，因为铝盆架的盆架是铸造而不是冲压成型，因此其几何变形比冲压的铁盆架要小的多。
In order to reduce the cost, a very thin iron plate is used as the basin frame of the speaker. The quality of the speaker box is poor, which is also one of the reasons. Generally, the thickness of the iron plate used for the basin frame of the speaker with 150wrms power shall not be less than 1.2mm. Of course, the aluminum basin frame is better, because the aluminum basin frame is cast rather than stamped, so its geometric deformation is much smaller than the stamped iron basin frame.
音源，所谓声音来源。
The sound source is the so-called sound source.
我们很多时候去舞厅，听到的低音叠补蝉蝉与录音颁顿出来的完全不同，这并不是因为舞厅音箱不好，(当然确实也有不好的)而是声音来源不对，具体说是收音方法错误。
We often go to the dance hall, and the bass we hear is completely different from that recorded on the CD. This is not because the sound box in the dance hall is not good (of course, there are bad ones), but because the sound source is wrong. Specifically, the sound receiving method is wrong.
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