更新時(shí)間：2022-11-04
文章來源：http://m.74seba.com/
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山東公共廣播音響系統(tǒng)中的喇叭常有燒掉或破聲的情形，一般人直覺人會(huì)認(rèn)為是開太大聲了喇叭會(huì)受不了，因而把喇叭弄壞，其實(shí)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(huì)振壞喇叭，另一種情況就是擴(kuò)大機(jī)功率不足硬開大聲，所輸出的都是不正常的切割信號(hào)，這種情況也會(huì)把喇叭損壞。建議喜好大音量的使用者要選購(gòu)大功率的擴(kuò)大機(jī)，30W的小功率后級(jí)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(kuò)大機(jī)如果有直流輸出，那一定會(huì)燒掉低音喇叭，甚少數(shù)的高音喇叭也會(huì)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(gòu)擴(kuò)大機(jī)時(shí)千萬注意，要先用電表測(cè)量前級(jí)和后級(jí)的輸出端是否有直流輸出，如果前級(jí)有直流輸出也有可能經(jīng)由后級(jí)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(xiàn)在也在自己裝，那更要請(qǐng)注意高頻振蕩，好用示波器檢查一下前級(jí)和后級(jí)是否有振蕩或直流輸出，萬一您沒有發(fā)現(xiàn)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(jí)(或廣播用的)不會(huì)有直流輸出的(如果有就嚇人了)，但是真空管機(jī)又流行起來了，要特別注意真空管機(jī)比較容易有高頻振蕩或干擾，上述的情況是喇叭常發(fā)生的原因，提供你作為日常保養(yǎng)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(diào)和我一直強(qiáng)調(diào)，器材的搭配的重要性遠(yuǎn)勝于單獨(dú)器材本身的好壞。便宜的器材如果得到適當(dāng)?shù)拇钆?，其表現(xiàn)一定會(huì)勝過搭配不良的高價(jià)器材而器材搭配的原則就是找到平衡點(diǎn)，就像翹翹板般，找到中間的那個(gè)平衡點(diǎn)。
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(gè)性陽剛的器材我們就找陰柔的來配，讓它的個(gè)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(guān)音響設(shè)備系統(tǒng)的信息就來我們網(wǎng)站
http://m.74seba.com進(jìn)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://m.74seba.com Consult!
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