HK Audio L.U.C.A.S IMPACT Mode D'emploi page 8

L.U.C.A.S IMPACT Manual 1.2
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L.U.C.A.S IMPACT - user panel rear
8 Input Left and Input Right (Combination XLR/1/4"
jacks)
L.U.C.A.S IMPACT is equipped with separate left and
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right channel inputs for connecting to a mixer.
Connections: Connect the audio cables that route
the signal coming from your mixer (master left/
right, line out, or a similar circuit) to these balanced
inputs using microphone cables equipped with XLR
connectors. The XLR connectors' pin assign ments
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must be as follows:
1= ground, 2= +, 3= -.
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You can also use a 1/4" Tip-Ring-Sleeve plug to route
signals via balanced circuits. Unbalanced signals can
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be patched in via a mono plug.
9 Through Left, Through Right
Connections: Parallel outputs for routing the line
signal (left or right) to other systems, outboard com-
ponents, monitor power amps, etc., via XLR cables
10 Sensitivity
This switch boosts input sensitivity. Setting it to
-6 dB rather than the standard +4 dB setting boosts
the input level 10 dB. For the widest dynamic range
in live applications, we recommend setting the
switch to +4 dB.
Recommendation: Using a professionell mixer, the
input sensitivity should be set to +4 dB. This lets
you take advantage of the system's full dynamic
range and helps to avoid system overloads.
Using a signal with a lower output level the input
sensitivity should be set to -6 dB.
11 Speaker Out (To Satellite Left und Right)
Connections: Connect these Speakon outputs to
the left and right L.U.C.A.S IMPACT satellites using
speaker cables equipped with Speakon connectors.
Note: Be sure to rotate the Speakon connectors
clockwise until they lock in place!
12 Power Switch
Operation: On/off switch for the active system.
The display on the system controller glows orange to
indicate that the system is on.
Note: Once you have engaged the Power switch,
it will take several seconds for the display to light
up and the system to be ready for operation. This
is standard procedure and does not indicate a mal-
function.
The active L.U.C.A.S IMPACT system should always
be switched on last after you power up all equip-
ment connected to it, and should be switched off
first before you switch off all the other equipment
connected to it.
13 Mains Input
Connections: Use the factory-included mains cable
(power cord) to connect from this socket to a wall
receptacle. Caution! Make sure the local mains
voltage matches the voltage specified on the de-
vice. Connecting the system to the wrong mains
voltage may destroy the L.U.C.A.S IMPACT system's
electronic components.
14 Mains Cable Tab
Clamp the power cable into the tab to prevent it
from being pulled out inadvertently.
15 Fans
These fans (on the side and back of the housing)
keep the power amp modules cool. Always keep the
fan and ventilation vents free of dirt and debris, and
ensure they remain unobstructed so air can circulate
freely.
L.U.C.A.S IMPACT Satellite
Input
Connections: Connect the Speakon inputs to the left
and right L.U.C.A.S IMPACT satellite outputs using
speaker cables equipped with Speakon connectors.
Note: Be sure to twist the Speakon connectors
clockwise until they lock in place! You must first
disengage the safety catch before you can unplug
the connector. To do this, pull the bayonet catch
towards the cord.