Peavey Escort 3000 Operating Manual page 93

安装指南
安全第一!
Escort
的安装和其它音响系统的设置大同小异，许多方面都需要用到最普通的常识。安全永远是您要首先关注的事情。切记
®
要使用带地线的电源插座和三相延长线。音响系统的电缆布线要防止绊跌，如有必要，用胶带将其粘在地上。扬声器和调音台
的支架要置放在结实平整的表平面上。遵守这些准则有助于防范人身伤害和设备损伤，确保年久日长的无故障使用。
Avoiding Acoustic Feedback
Acoustic feedback is the loud howl or squealing sound heard through sound systems as the result of sound from the
设置调音台和扬声器
speakers re-entering the microphones. Although it does an excellent job of getting the audience's attention, feedback
should be avoided. When trying to deal with acoustic feedback it is always best to start looking at the placement of the
置放锁闭的设备套装使扬声器朝上，拉起锁扣，直至锁扣松脱，从箱内取出扬声器。
mics and speakers in the system before resorting to equalization (EQ) adjustment. Make sure that the speakers are
positioned to direct the sound toward the audience and away from the microphones. Position mics as close to the sound
注意：锁扣在扬声器取出后可以再扣紧，我们建议您这么做，以防止在取出其它组件时碍手碍脚，同时也有助于防止锁扣受损。关闭锁扣
source as reasonable. Moving the mic closer increases the volume of the sound through the system without having to
时将其推至和箱侧齐平，然后向下按压，直至锁住。
turn up the gain.
从箱内取出扬声器支架。务必要将支架腿完全撑开，确保为扬声器提供稳定的支承，将支架置放在平整的表平面上。拧紧底座上的指旋螺
Microphone Usage Guidelines
钉，但不要拧得过紧（见图 1）。将扬声器支架升至所要的高度，拧紧指旋螺钉，并按图示装上安全销（见图 2）。
When practical, a single microphone is preferred. Additional microphones pick up more sound from the speakers and
each mic has to be turned down a little to prevent feedback. However, if you have difficulty balancing the level of
different individuals with one mic, or if you still cannot get sufficient gain, using more mics can offer an advantage.
Giving several singers their own microphones, for example, allows placement of the microphones much closer to each
singer. This increases the volume of the sound at the mic and far outweighs any detrimental effect from using multiple
mics. It also allows the volume of each mic to be adjusted separately for proper balance.
Reverb
Adding reverberation to music can enhance the sound of that music. To add reverb to a microphone, simply turn up the
REVERB control (Fig. 7) on the appropriate input channel. Add reverb in moderation because too much reverb makes
vocals hard to understand. In most cases, it is best not to add reverb to the spoken word.
Stereo / Mono Operation
The Escort 2000 powered mixer has two input channels (4 & 5) for stereo line sources. If the speakers are situated so
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2000 powered mixer has two input channels (4 & 5) for stereo line sources. If the speakers are situated so
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that most of the audience can hear both speakers (Fig. 10 A), it can be advantageous to run the system in stereo. If the
audience primarily hears just one speaker (Fig. 10 B), or if you are using one speaker for the audience and the other for
将扬声器放置在支架上，扬声器的安放位置要面对听众，并远离话筒（见图 3）。用扬声器电缆将扬声器正面底部的插孔连接到调音台背
the stage performers, then it is best to run the system in mono.
面的扬声器输出上，左扬声器连接到左输出上，右扬声器连接到右输出上（见图4）。
Stereo
Stereo
A
将扬声器插孔插入这里
Fig. 9
图 1
Stereo
Stereo
Fig. 10
图 4
Fig. 9
或
图 3
Fig. 10
7
7
警告！只可将附带的扬声器连接到调音台上。Escort 扬声器为有源
调音台提供了最佳的负载，使用其它扬声器可能导致设备损坏。
图 2
Mono
Mono
Mono
Mono
B
B