Applications; Signal Output; Power Supply - IMG STAGELINE PSUB-12AKA Mode D'emploi

2. The wire which is coloured blue must be con-
nected to the terminal which is marked with the
letter N or coloured black.
3. The wire which is coloured brown must be con-
nected to the terminal which is marked with the
letter L or coloured red.
Warning – This appliance must be earthed.
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 cabi-
nets. They are equipped with an integrated stereo
power amplifier, two mixable input channels and
tone controls. This makes it easy to set up a com-
pact sound system: Only two speaker systems
for mid-high range reproduction are additionally
required (e. g. PAB-306 or PAB-308 from "img
Stage Line").
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 sub-
woofer offers a mounting facility for a speaker sys-
tem.
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 stereo 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 cor-
ners; this would distort the frequency 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 of "img Stage Line") into the stand sleeve on
the upper side of the subwoofer, then fasten a
speaker system equipped with a stand sleeve on its
lower side on top of the subwoofer system.
5 Connecting
Prior to making connections or changing any exist-
ing 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.
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 con-
figuration of the plug is shown in figure 3. To con-
nect microphones with balanced output signal, use
an adapter.

5.2 Signal output

The signal of the line inputs (10, 13) is available at
the RCA jacks PAR. LINE OUTPUT (14). They can
be used e. g. to connect another sound system or a
recorder.
5.3 Stereo speakers
Connect two speaker systems for mid-high range
reproduction with a minimum impedance of 8 Ω,
e. g. PAB-306, to the speaker jacks (17) OUTPUT
LEFT (left speaker) and OUTPUT RIGHT (right
speaker). The configuration of the plug is shown in
figure 4. When several speakers are intercon-
nected at an output, the total impedance of the
speakers must not fall below 8 Ω at any output.
After connecting a speaker plug to the jack, turn
the plug clockwise until it engages. To disconnect
the plug, pull back the locking tab of the plug and
turn the plug counter-clockwise.
When connecting the speakers, make sure that
both speakers have the same polarity.

5.4 Power supply

Connect the mains cable provided to the mains
jack (20) and the plug to a mains socket (230 V~/
50 Hz).
GB
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