Behringer EPA900 User's Manual | Page 8

Behringer DJ Equipment User's Manual - EPA900.
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EUROPORT EPA900 User Manual

Graphic equalizer

3.6  
The EPA900 is equipped with a 7-band graphic equalizer, which enables you to 
adapt the sound to the room conditions and your own ideas for the sound. 
The equalizer always processes the LEFT/MAIN and RIGHT/MAIN bus equal y.

EQ ON

You can activate the equalizer using the EQ ON switch.

FBQ ON

Using the FBQ ON switch, you can activate the feedback detection circuit. 
This function only has an effect if the equalizer is active. For every frequency 
that causes feedback, the corresponding LED on a slide control lights up. 
Lowering the displayed frequency minimizes feedback.

Effects unit

3.7  
The EPA900 is equipped with an internal stereo effects processor, which offers 
100 different standard effects, including reverb, chorus, flanger, and echo, as well 
as various multieffects. It is permanently integrated into the mixer as a 
Send/Return effect; i.e., an adjustable signal portion can be routed to the effects 
unit from every input channel. The selected effect is applied to the signal 
portions of the channels, and the signals are then mixed with the direct signals 
via the stereo bus.

CLIP/SIG

The CLIP and SIG LEDs provide information on the signal level on the effects unit.

When continuously lit up, the CLIP LED indicates a signal overdrive. In this 

case, the effects unit input level should be reduced through lowering of the 
Send level using the EFFECTS controls for the input channels.

The SIG LED signalizes that the effects processor is receiving a signal and is 

working. If the LED is not lit up, the input signal is too weak.

Fig. 3.6: Graphic equalizer section

Fig. 3.7: Internal 24-bit multieffects unit

PROGRAM (PUSH)

You can turn the PROGRAM control knob to select an effects preset. Then press 
the knob to activate the selected effect.

EFFECTS (LEVEL)

The EFFECTS (LEVEL) control is used to adjust the effects signal volume.

Main Power Section

3.8  
The operating volume of the sound system is set via the main power section 
(MAIN LEVEL CONTROL).

LEFT/MAIN and RIGHT/MAIN

The two controls are used to adjust the volume of the corresponding 
loudspeaker outputs.

MODE

With the MODE switch, the power amplifier section can be switched to stereo 
or mono mode. Depending on the setting, the limiter, which provides overdrive 
protection for the system, works in coupled stereo or independent mono mode.

Always remember to set the switch according to the given application 

◊ 

to avoid incorrect limiter behavior!

Power supply and serial number

3.9  

FUSE HOLDER/IEC SOCKET

Connection to an AC power supply is made via an IEC socket. It complies with 
applicable safety regulations. A suitable AC power cord is included. Replace the 
fuse with a fuse of the same type.

To avoid an electric shock, turn off and unplug the unit before replacing 

◊ 

the fuse.

Fig. 3.8: Control elements in the main power section

Fig. 3.9: Power supply and fuse

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