Behringer B215XL Manuale Utente

EUROLIVE B212XL/B215XL User Manual 

We have developed the B212XL/B215XL for use in a wide  
range of possible applications. Of course, the sound of your loud-
speakers depends on the acoustic characteristics of the room/
space in which they are being used. The following chapters of 
this manual will give you information about getting the most out 
of your EUROLIVE speakers.

High frequencies are the segment of the audio spectrum  
responsible for clarity and speech intelligibility. These frequen-
cies are the easiest ones to locate, but at the same time they are 
also the easiest ones to “obstruct.” Therefore, we recommend 
positioning your speakers so that the HF drivers are located 
slightly above the height of the audience. This guarantees the 
best possible dispersion of high frequencies and considerably 
higher intelligibility.

Always place the “front of house” speakers ahead of the micro-
phones (from the audience’s perspective), and never behind. Use 
professional floor monitors or an in-ear monitoring system to 
hear the stage performers.

In applications with record players, bass feedback can occur. 
Bass feedback occurs when low frequencies get back to the 
pickup and are reproduced on the speakers. The most common 
causes for this are: speakers located too closely to the record 
player, a room with a wooden floor, or presence of a podium or 
a platform. In such cases, it is best to move the speakers away 
from the record player and “banish” them from the stage, so that 
they are located on firm ground. Another option is to use raised 
stands, which prevent the speakers from having a direct contact 
with the ground.

Try to prevent damage to your speakers caused by extreme 
oscillation of the bass membrane due to subsonic noise and 
extremely deep frequencies. Use an equalizer to cut off those  
frequencies that fall below your speakers’ frequency range,  
or use a low-cut/high-pass filter. Most equalizers and  
sound-improvement systems offer a low-cut function, like the 
BEHRINGER ULTRAGRAPH DIGITAL DEQ1024, for example.
Using a low-cut filter in your signal path is particularly recom-

mended if you use record players or CD players as your signal 
source. CD players often produce extremely deep frequencies, 
which can lead to extreme excursions of the bass membrane.

Loudspeaker cables whose diameter is too small can consider-
ably limit the power amp performance. The longer the cable, 
the more pronounced the problem. As a result, musicians 
often simply “turn up” the amp, which can lead to loudspeaker 
damage. Therefore, don’t use cables longer than 15 m (45 ft.). 
For most applications, this will not be necessary. Cable diameter 
should be at least 14 - 12 gauge.

Selecting the right amp can turn out to be rather difficult. 
Therefore, stick to the following rule of thumb: the power  
rating of your amp should be roughly twice the speaker load 
capacity. A speaker rated at 200 Watts continuous performance 
can easily be powered by an amp rated at 400 Watts output 
power. An optimal addition to your speaker system would be the 
BEHRINGER EUROPOWER EP2000 power amp, for example.

We do not recommend the use of fuses with audio applications. 
Damage to loudspeakers can be the result of high peak signals 
and high output power. However, fuses can only offer protection 
from one of these two factors, and never from both. Additionally, 
fuse resistors are sometimes nonlinear, leading to distortion and 
unpredictable overdriving.

Always try to find the optimal signal level. Try to avoid  

overdriving your amp.
Keep in mind the physical limitations of your PA system.

Use a limiter to restrict the output signal level. Place the 

limiter between the mixing console and the power amp. For 
this purpose, our proven AUTOCOM PRO-XL MDX1600, 
COMPOSER PRO-XL MDX2600 and MULTICOM PRO-XL 
MDX4600 compressors offer an outstanding solution. All 
models can be used as a limiter: the audio signal doesn’t 
overdrive any more, and unpleasant “peaks” are effectively 
avoided.