世界各主要专业扬声器、音箱公司

世界各主要专业扬声器、音箱公司，纷纷推出各自的线性阵列扬声器系统。

Such as Meyersound M3D, Deliya-Sound-la210, EV X-LINE, Martin Audio W 8L, Lorinser LA series, etc., in many large sports games in the world, large-scale performances also use linear array speaker systems.
如Meyersound M3D、Deliya-Sound-la210 、EV X—Line 、Martin Audio W 8L、Lorinser LA系列等，在世界许多大型运动会、大型演出现场也品牌使用线性阵列扬声器系统。

So how to judge the line array is good or bad?
那么如何判断线阵列的好坏?

Many people have their own answer to this question, the most common is to listen to the ear.
这个问题很多人都有自己的答案，最常见的是拿耳朵听。

Especially the sound engineer who is used to performing, absolutely trust their ears!
特别是做惯演出的音响师，绝对相信自己的耳朵!

From the perspective of a R&D engineer and systems engineer, you can judge from the following points:
从一个研发工程师和系统工程师的角度出发，可以从以下几点判断：

1. Look at the unit size and frequency dividing point of the speaker
1、看音箱的单元尺寸和分频点

This can already judge a lot of information, for example, if the treble is a 44MM diameter treble, the safe operating frequency can not be less than 2K, if the alto is to use four 6 and a half inches, you can judge that the design is unreasonable, because the minimum horizontal spacing of two 6 and a half inches is more than 7 inches, and the lowest interference frequency of 7 inches is about 1.34K (formula 242).
这已经可以判断很多信息了，例如，高音如果是用44MM直径的高音，安全的工作频率不能低于2K，如果中音是用4个6寸半的话，你就可以判断这个设计不合理，因为2个6寸半水平间距最小都要超过7寸，7寸的干涉频率最低点是1.34K左右(242公式)，

So for the safety of the unit, if the frequency dividing point is 2K, the midrange will interfere at 1.34K, and in order not to interfere, if the frequency dividing point is 1.3K, the diaphragm of the 44 treble will soon break.
那么为了单元的安全，分频点在2K的话，中音在1.34K就会发生干涉，为了不干涉，分频点在1.3K的话，44高音的振膜就很快会碎掉。

So it's a completely irrational design.
所以是完全不合理的设计。