山東公共廣播音響系統中的喇叭常有燒掉或破聲的情形，一般人直覺人會認為是開太大聲了喇叭會受不了，因而把喇叭弄壞，其實不然，有許多種情況都可能，分別舉例如下面的情況及理由給您解惑。
The loudspeakers in Shandong public address sound system often burn or break. Most people intuitively think that it is unbearable to turn on the loudspeakers too loudly, so they break the loudspeakers. In fact, there are many possible situations, such as the following situations and reasons.
1、開太大聲固然會振壞喇叭，另一種情況就是擴大機功率不足硬開大聲，所輸出的都是不正常的切割信號，這種情況也會把喇叭損壞。建議喜好大音量的使用者要選購大功率的擴大機，30W的小功率后級可能燒掉低阻抗大喇叭的。
1. Opening the horn too loudly will damage the horn. Another situation is that the power of the amplifier is not enough to turn it on hard, and the output is abnormal cutting signals, which will also damage the horn. It is recommended that users who prefer loud volume should buy high-power amplifiers. The 30W low-power rear stage may burn out the low impedance loudspeakers.
2、擴大機如果有直流輸出，那一定會燒掉低音喇叭，甚少數的高音喇叭也會燒掉。原因乃低音(或其他音路)喇叭分音路徑上沒有電容器隔離直流，直流一輸出就像把直流電通入喇叭中，連分音器線圈一起燒得焦黑。因此選購擴大機時千萬注意，要先用電表測量前級和后級的輸出端是否有直流輸出，如果前級有直流輸出也有可能經由后級再放大輸出把直流傳入喇叭。
2. If the amplifier has a DC output, it will definitely burn out the bass speakers, even a few tweeters. The reason is that there is no capacitor on the crossover path of the bass (or other sound path) speaker to isolate DC. Once DC is output, it is like passing DC electricity into the speaker and burning the crossover coil together. Therefore, when purchasing an amplifier, be sure to use an ammeter to measure whether there is DC output at the output terminals of the front stage and the rear stage. If there is DC output at the front stage, it is also possible to transmit DC to the horn through the amplifier output at the rear stage.
3、如果您是自己裝的它手一定知道高頻振蕩這回事，假如您現在也在自己裝，那更要請注意高頻振蕩，好用示波器檢查一下前級和后級是否有振蕩或直流輸出，萬一您沒有發現有此狀況，那也許燒掉您的喇叭夠讓您買好幾部20MHz的示波器了。
3. If you install it yourself, you must know the high frequency oscillation. If you install it yourself now, you should pay more attention to the high frequency oscillation, so that you can use the oscilloscope to check whether there is oscillation or DC output at the front and rear stages. If you do not find this situation, you may burn your horn to buy several 20MHz oscilloscopes.
有輸出變壓器的真空管后級(或廣播用的)不會有直流輸出的(如果有就嚇人了)，但是真空管機又流行起來了，要特別注意真空管機比較容易有高頻振蕩或干擾，上述的情況是喇叭常發生的原因，提供你作為日常保養的參考。
The rear stage of the vacuum tube with an output transformer (or for broadcasting) will not have DC output (it would be scary if there is one), but the vacuum tube machine has become popular again. Pay special attention to the fact that the vacuum tube machine is prone to high-frequency oscillation or interference. The above situation is the cause of frequent occurrence of the horn, which provides you with a reference for daily maintenance.
器材重搭配，陰陽要調和我一直強調，器材的搭配的重要性遠勝于單獨器材本身的好壞。便宜的器材如果得到適當的搭配，其表現一定會勝過搭配不良的高價器材而器材搭配的原則就是找到平衡點，就像翹翹板般，找到中間的那個平衡點。
Equipment should be re matched. Yin and Yang should be reconciled. I have always stressed that the importance of equipment matching is far greater than the quality of individual equipment. If the cheap equipment is properly matched, its performance will certainly be better than the poorly matched high price equipment. The principle of equipment matching is to find the balance point, just like a seesaw, to find the balance point in the middle.
基于此因，如果個性陽剛的器材我們就找陰柔的來配，讓它的個性聽起來很順。如果覺得音色太亮的器材我們就找溫暖的來配;速度太慢的我們就為它配上速度快者。更多相關音響設備系統的信息就來我們網站
http://www.zkvd.cn進行咨詢吧！
For this reason, if the equipment is masculine, we will match it with a feminine one to make its personality sound smooth. If we think the timbre is too bright, we will find warm equipment to match; If the speed is too slow, we will match it with a fast one. More information about audio equipment systems can be found on our website http://www.zkvd.cn Consult!
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