音响系统容易被忽略的十大问题

Ten problems that are easily ignored in sound system

一、一些新音箱是需要经过一段使用之后，才能展现出它最完美的音质的，这就是所谓的“煲”箱，否则，它的重放声音也会显得比较硬和过分的明亮，或者发紧放不开，这个时间过程对于不同的音箱来说相差很大，从数十小时到数十天都有可能。

First, some new speakers need to be used for a period of time before they can show their perfect sound quality. This is the so-called "pot" box. Otherwise, its playback sounds will be hard and too bright, or it can not be opened tightly. This time process varies greatly from dozens of small speakers. Ten to ten days is possible.

二、小型的书架箱因为受到物理因素限制，所以这类的音箱低音动态范围是不可能太大的，所以即便是它的低频延伸的很低，但是现实的意义也并不是很大，所以追求小型音箱的低频下限，实际上来说效果是很不理想的，也不适合爆棚的音乐重播。

2. The small bookcase is limited by physical factors, so the bass dynamic range of this kind of speakers is impossible to be too large, so even if its low-frequency extension is very low, but the practical significance is not very big, so the pursuit of low-frequency limit of small speakers, in fact, the effect is not ideal, nor is it. Music playback suitable for bursting.

三、音箱的标称阻抗最为常见的有4Ω和8Ω两种，4Ω的音箱虽然能使用功率放大器来输出更大的功率，但是因为阻抗比较低的时候，对于功率放大器输出电流能力的要求高，这对于一些电源余量不是很大的功率放大器来说往往会导致失真增大，而且低阻抗的扬声器对于阻尼不利，影响低频的控制力，另外一些扬声器阻抗在实际的工作中，某些频率有可能会降低到一半以下，所以最好不要选择8Ω的音箱。

3. Nominal impedance of speakers is the most common type of 4_and 8_. 4_speakers can use power amplifiers to output more power, but because the impedance is relatively low, the output current of power amplifiers is required to be high, which is often for some power amplifiers with small power margin. And the low impedance of the loudspeaker is not conducive to damping, affecting the low-frequency control force, and some other loudspeaker impedance in actual work, some frequency may be reduced to less than half, so it is better not to choose the 8_speaker.

四、小口径的扬声器单元音箱虽然能够取得比较好的听音效果，但是这种音箱比较适用于近距离接听，对于比较大的房间，应该选择口径比较大的单元扬声器音箱，这才能取得好的听音效果。

4. Small-caliber loudspeaker unit speaker can achieve better listening effect, but this kind of speaker is more suitable for close reception, for larger rooms, should choose the larger-caliber unit speaker speaker speaker speaker, which can achieve good listening effect.

五、哑铃式音箱采用两只一样的中低频扬声器单元，在高频单元两边来做对称布局。能够获得比较好的低频响应和瞬态响应，比较高的灵敏度以及功率承受能力，大动态非线性的失真比较小，不过它的中频段综合频率特性往往产生低估，而且垂直方向性是比较窄的，所以它的中音性能值得我们注意，不过一些哑铃式的音箱下面的一只单元是作为重放低频的，上面一只单元播放中、低频，上述的缺点就能够克服。

Fifth, dumbbell loudspeakers use two identical medium and low frequency loudspeaker units, in the high frequency unit on both sides to do a symmetrical layout. It can obtain better low frequency response and transient response, higher sensitivity and power endurance, large dynamic nonlinear distortion is relatively small, but its intermediate frequency band comprehensive frequency characteristics are often underestimated, and the vertical direction is relatively narrow, so its mid-tone performance deserves our attention, but some The above shortcomings can be overcome by playback the low and medium frequencies in the lower unit of the dumbbell type speaker and playback the middle and low frequencies in the upper unit.

六、双线分音的音箱，是有两组扬声器接线柱的，如果作普通连接，两组接线柱并联，这时候扬声器线材需要连接在中低频单元那一对接线柱上面，不然受到两组接线柱并联用的连线或是铜片的影响，低频重放的效果也会大打折扣。

6. A two-wire divider speaker box has two sets of speaker terminals. If the two sets of terminals are connected in parallel with each other, the speaker wires should be connected to the pair of terminals in the middle and low frequency unit. Otherwise, the effect of low frequency replay will be greatly affected by the parallel connection of the two sets of terminals or copper sheets. Discount?

七、落地音箱是放置在地面的，不过因为经常受到地面的共振而导致重播声音的平衡受到影响，甚至导致低音发轰，所以大部分的情况下，脚钉也是必不可少的，座架音箱大部分采取高度合适的脚架，随意的放置在桌柜上，因为声波的反射，经常会使得音箱重播的特性改变，对于高频单元采用镜像对称设计的音箱，摆位的时候高频单元应该偏向内侧摆放。

7. The floor speaker is placed on the ground, but because of the ground resonance often lead to the balance of the repeat sound affected, and even lead to bass bombardment, so in most cases, the foot nail is also essential, most of the shelf speakers take a high appropriate foot, randomly placed on the table cabinet, because In order to reflect sound waves, the characteristics of loudspeaker replay are often changed. For high-frequency units designed with mirror symmetry, the high-frequency units should be placed inward when positioned.

八、音箱和脚架之间，最好使用三块泡沫双面胶，以三角的位置黏贴在音箱的底部位置，然后再将脚架放上去，这样音箱对于脚架就有一定的粘着力了，不然使用的时候如果不小心带到音箱，音箱很容易滑出来摔坏。

Eighth, between the speaker and the scaffold, it is best to use three pieces of foam double-sided glue, in a triangular position pasted on the bottom of the speaker, and then put the scaffold on, so that the speaker for the scaffold has a certain adhesive force, otherwise when used, if not carefully brought to the speaker, the speaker is easy to slide out and fall.

九、出声口开孔设置在音箱后障板上的低音反射式音箱，它和后墙的距离是需要经过调校的，才能取得比较合理的低频表现，距离太近的话会出现低频过多或者含混不清的声音，距离太远的话又有可能会导致低频不足，出声口在前障板上的音箱，但是不需要顾虑反射孔的问题。

9. A bass-reflective speaker with a hole in the sound outlet is arranged on the baffle board behind the speaker. The distance between the speaker and the back wall needs to be adjusted to achieve a more reasonable low-frequency performance. If the distance is too close, there will be too many low-frequency or ambiguous sounds. If the distance is too far, it may lead to low-frequency insufficiency and the sound outlet may be too far away. The speakers on the front baffle do not need to worry about reflecting holes.

十、音箱非常容易受到放置房间声学特性和安装位置的影响，音箱放置在不一样的环境当中，发声效果也是会有所不同的，即便是同一个音箱，经过均衡重放系统调成相同的频率响应，但是房间大小有区别，音效也是会有区别的。

10. The sound box is very vulnerable to the room acoustic characteristics and installation location, sound box placed in different environments, the sound effect will be different, even if the same sound box, after balanced playback system to the same frequency response, but the room size is different, the sound effect will also be different. Yes.