Behringer Eurolive Professional B1800X PRO 사용자 설명서

EUROLIVE B2520 PRO/B1800X PRO/B1520 PRO/B1220 PRO User Manual

Make sure that your mixing console is indeed carrying a signal (is the master 

fader raised? Are channels active?) and that the gain control on your amp is 

turned up

When using a crossover, make sure that the relevant channels are active

Check if the cable connection is interrupted/damaged somewhere in 

your setup

To test your configuration, connect another amp. If you now get a signal, 

the power amp is the culprit

To test your configuration, connect another speaker. If you now get a signal, 

the fault lies within the speaker

Make sure that your mixing console is working properly (is the signal present 

on both outputs (L/R)?)

If using a crossover, check if the relevant channel is active

Check if the cable connection to the silent channel and to the corresponding 

speakers is interrupted/damaged somewhere along the path

Connect the silent loudspeaker onto the amp channel that works properly. 

If you now get a signal, it is the amp channel that is at fault. If you still 

can not hear anything, the fault lies either within the loudspeaker or the 

cables used

Make sure that all signals on the mixing console have been set to optimal 

levels in order to avoid distortion

If using a crossover, check if all signals have been set to correct levels

Make sure that the power amp channels are not overdriving. If so, turn the 

gain control down a little. However, it could also be the case that your power 

amp doesn’t have enough power headroom, so that the required volume can 

not be generated without starting to distort

Make sure that the level of the signal getting into the speakers is not too 

high, causing distortion

Check your EQ settings. Excessively increasing the frequencies can result 

in distortion 

If distortion is still occurring despite everything you have tried to eliminate 

it, try connecting a different power amp. If you no longer hear distortion, 

its cause was with the power amp

As a test, connect another speaker. If you no longer hear distortion, its cause 

was with the loudspeaker (perhaps a defective loudspeaker)

Check if the cable connection is interrupted/defective somewhere along 

the path 

Check the EQ settings on your mixing console or on an external EQ, 

if applicable

Make sure that the tweeters on your loudspeakers are positioned at the 

same height as the ears of the people in the audience. If not, please modify 

the speaker position

The internal tweeter fuse may have opened. In this case, please contact a 

BEHRINGER service branch office near you

Check the EQ settings on your mixing console or on an external EQ, 

if applicable

Check the speaker cable pin assignment (see fig. 1.3). Incorrect pin 

assignment can cause phase cancellation and the frequency incursions 

related to it

Check the speaker cable pin assignment (see fig. 1.3). Incorrect pin 

assignment can cause phase cancellation and the frequency incursions 

related to it

Check if large objects (e.g. effect racks and similar equipment) are placed 

in front of the loudspeakers. They too can negatively influence 

sound dispersion

Check the sound quality of the input signal by listening to it on a set 

of headphones

Also see the instructions in the chapters 7.3, 7.4 and 7.5