有时候音响出问题，大家可能会认为是连接出现了问题。那么你知道音响的链接有平衡和非平衡之分吗？今天山东音响来带大家了解一下音响的连接！
Sometimes there's something wrong with the stereo. You may think that there's something wrong with the connection. Do you know that there are balanced and unbalanced audio links? Today, Shandong professional audio to take you to understand the audio connection!
非平衡又叫单端输入或单端输出。一个信号端和一个参考端。
Unbalanced is also called single ended input or single ended output. A signal terminal and a reference terminal.
平衡又叫双端输入或双端输出。两个信号端其中一个正向另一个反向。电子平衡中还有&濒诲辩耻辞;地&谤诲辩耻辞;。
Balance is also called double input or double output. One of the two signal terminals is forward and the other is reverse. There is also "Earth" in the electronic balance.
平衡电路有两种：
There are two kinds of balance circuit
1、变压器平衡：它是真 正意义上的平衡。它有极 高的共摸抑 制比、输入输出完全隔离、无直流、无地线引起的交流声、接成非平衡时，反向输出端接地，增益无变化。它的缺点是平衡变压器造价昂贵，频响较难做到平直。
1. Transformer balance: it is the true balance. It has very high common mode rejection ratio, complete isolation of input and output, no AC sound caused by DC or ground wire, and no gain change when the reverse output terminal is grounded. Its disadvantage is that the cost of balance transformer is expensive and the frequency response is difficult to be straight.
2、电子平衡：用电子线路做成的平衡。它的共摸抑 制比一般不会高于集成电路的供电电压(约正负15伏)。输入输出不隔离，有可能因重复接地引起交流声、接成非平衡输出时，反向输出端必 须悬空不能接地，且增益降低6dB。接成非平衡输入时，反向输入端必 须接地不能悬空。它的优点是造价低廉，频响较易做到平直。
2. Electronic balance: a balance made of electronic circuits. Its common mode rejection ratio is generally not higher than the supply voltage of IC (about + 15 V). When the input and output are not isolated, the AC sound may be caused by repeated grounding, and the unbalanced output is connected, the reverse output must be suspended and grounded, and the gain will be reduced by 6dB. When the unbalanced input is connected, the reverse input terminal must be grounded. It has the advantages of low cost and flat frequency response.
虽然变压器平衡有许多优点，但是由于其造价昂贵(频响平直的变压器)所以很少采用。现在我们用的调音台和周遍包括功放大多采用&濒诲辩耻辞;电子平衡&谤诲辩耻辞;。
Although transformer balancing has many advantages, it is seldom used because of its high cost (flat frequency response transformer). Now we use the mixer and peripheral power amplifier mostly use "electronic balance".
山东音响提示您由于电子平衡与变压器平衡的区别，所以二者的接线方法是不一样的，应引起注意.
Shandong professional audio reminds you that due to the difference between electronic balance and transformer balance, the wiring methods are different
