8
EUROPORT EPA800
CAUTION
The outputs are powered outputs, which put out
a strong, amplified signal (not a low-level LINE
signal!). For this reason, only PASSIVE loudspeaker
systems can be connected. Other devices could
get damaged.
V
If loudspeakers with an impedance of 4
Ω
are used, the
two outputs have a maximum power of 800 W.
V
If loudspeakers with an impedance of 8
Ω
are used, the
two outputs have a maximum power of 400 W.
3.5 Graphic Equalizer
The EPA800 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 equally.
Fig. 3.6: Graphic equalizer section
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.
3.6 Effects Unit
The EPA800 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.
Fig. 3.7: Internal 24-bit multieffects unit
CLIP/SIG
The CLIP and SIG LEDs provide information on the signal level on
the effects unit.
V
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.
V
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.
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.
3.7 Main Power Section
The operating volume of the sound system is set via the main
power section (MAIN LEVEL CONTROL).
Fig. 3.8: Control elements in the main power section
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!
3.8 Power Supply and Serial Number
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.
Fig. 3.9: Power supply and fuse
To avoid an electric shock, turn off and unplug the
unit before replacing the fuse.
POWER Switch
Use the POWER switch to start up the unit. The POWER switch
should be in the "Off" position when you connect the unit to the
AC power supply.
To disconnect the unit from the power supply, pull out the power
plug. When starting up the unit, ensure that the power plug is
easily accessible.
Please note: Switching the POWER switch off does
not completely disconnect the unit from the power
supply. For this reason, you should unplug the
power cord if the unit is not going to be used for a
long period of time.
3. CONTROL ELEMENTS AND CONNECTIONS
