Safety Notes; Applications - IMG STAGELINE PSUB-12AKA Mode D'emploi

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Safety Notes

This unit corresponds to all relevant directives of
the EU and is therefore marked with
WARNING The unit uses dangerous mains
voltage . Leave servicing to skilled
personnel only; inexpert handling
may result in electric shock .
•
The unit is suitable for indoor use only . Pro-
tect it against dripping water and splash water,
high air humidity and heat (admissible ambient
temperature range: 0 – 40 °C) .
•
Do not place any vessel filled with liquid on
the unit, e . g . a drinking glass .
•
The heat generated inside the unit during
operation is dissipated by air circulation at the
cooling fins (16) . Never cover the cooling fins
and keep a sufficient distance, e . g . to walls .
•
Do not operate the unit or immediately discon-
nect the mains plug from the socket
1 . if the unit or the mains cable is visibly dam-
aged,
2 . if a defect might have occurred after the unit
was dropped or suffered a similar accident,
3 . if malfunctions occur .
In any case the unit must be repaired by skilled
personnel .
•
Never pull the mains cable to disconnect the
mains plug from the socket, always seize the
plug .
•
For cleaning only use a dry, soft cloth; never
use water or chemicals .
•
No guarantee claims for the unit and no liability
for any resulting personal damage or material
damage will be accepted if the unit is used for
other purposes than originally intended, if it is
not correctly installed or operated, or if it is not
repaired in an expert way .
If the unit is to be put out of operation
definitively, take it to a local recycling
plant for a disposal which is not harmful
to the environment .
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Applications

The PSUB-12AKA and PSUB-15AKA are powerful
active subwoofer systems in rugged wooden cab-
inets . They are equipped with an integrated ste-
reo power amplifier, two mixable input channels
and tone controls . This makes it easy to set up a
compact sound system: Only two speaker systems
for mid-high range reproduction are additionally
required (e . g . PAB-306 or PAB-308) .
The subwoofer systems feature a crossover
network with adjustable crossover frequency
(80 –250 Hz) to distribute the signal to the sub-
.
woofer and the stereo speakers connected .
The amplifiers are protected with a limiter
against overload and with protective circuits
against short circuit and overheating .
The stand sleeve on the upper side of the
subwoofer offers a mounting facility for a spe-
aker system .
4 Setting Up
Set up the subwoofer on solid ground . When
using a single subwoofer, it is not essential to
place it exactly in the middle between the ste-
reo speakers as you will not be able to precisely
locate the very low frequencies reproduced by
the subwoofer . However, do not place it too close
to walls or in corners; this would distort the fre-
quency response and prevent heat dissipation of
the integrated amplifier .
It is possible to install another speaker system
on top of the subwoofer system: Insert an adapter
with a tube diameter of 35 mm (e . g . from the
PAST series) into the stand sleeve on the upper
side of the subwoofer, then fasten a speaker sys-
tem equipped with a stand sleeve on its lower side
on top of the subwoofer system .
5 Connecting
Prior to making or changing any connections,
switch off the subwoofer system and the units
to be connected .
5.1 Connecting a signal source
Connect a signal source with line level (e . g . CD
player, output of a mixer) to the RCA jacks LINE
INPUT (13) . The inputs are designed for stereo sig-
nals (R = right channel, L = left channel) . The two
stereo channels of the signal source are internally
combined to a mono signal for the subwoofer .
If a signal source with balanced output signal
is available (e . g . output of a mixer), connect this
source to the XLR inputs (10) . The configuration
of the jack is shown in figure 2 (page 11) .
The RCA inputs and the XLR inputs cannot
be used at the same time!
To connect a microphone, use the 6 .3 mm
jack MIC INPUT (15) . The jack is unbalanced . The
configuration of the plug is shown in figure 3 .
To connect microphones with balanced output
signal, use an adapter .
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