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English
Connect a signal source via one of the three con-
nection options described in chapters 4.1 to 4.3.
4.1 Stereo input LINE IN
If a stereo output with line level is provided (e. g.
output of a preamplifier or mixer), connect this
output to the input LINE IN (7) on the subwoofer.
From the two stereo channels, a mono signal will
be created internally for the subwoofer.
If the outputs of the preamplifier or mixer
are already used for the existing audio system,
use an adapter to divide the output signal (e. g.
ACA-120 from MONACOR).
4.2 Stereo input HIGH LEVEL IN
If no output with line level is available, connect
the inputs HIGH LEVEL IN (11) to the speaker
outputs of the amplifier (LEFT = left channel,
RIGHT = right channel). Observe the correct
polarity of the connections. When connecting,
always switch off the amplifier. Make sure that
the cable ends used for connection to the screw
terminals are only stripped as far as necessary
and that no bare wires stick out (danger of con-
tact and short circuit). The feed-through outputs
HIGH LEVEL OUT (12) are directly connected to
the corresponding jacks HIGH LEVEL IN. Use
these jacks to connect the other speaker systems.
There are banana jacks under the protective
caps of the screw terminals.
WARNING
If an amplifier is connected to the
inputs HIGH LEVEL IN (11), cover
all banana jacks not used with
the protective caps; touching the
connections may result in electric
shock.
4.3 Mono input LFE
Connect the LFE output of a multi-channel sys-
tem or another mono output with line level to
the jack LFE (8).
Note: The adjustable low pass filter will not affect the
signal of a signal source connected to this input as an
LFE signal usually contains low-frequency signals only.
4.4 Power supply
Connect the plug of the mains cable (6) to a
mains socket (230 V/ 50 Hz).
5 Operation
CAUTION Never adjust the audio system to
a very high volume. Permanent
high volumes may damage your
hearing! Your ear will get accus-
tomed to high volumes which do
not seem to be that high after
some time. Therefore, do not fur-
ther increase a high volume after
getting used to it.
Note: To prevent switching noise, always switch on the
units connected before switching on the subwoofer and
switch it off first after use.
1)
Set the VOLUME control (2) to MIN (left
stop) for the time being and switch on the
subwoofer with the POWER switch (4). The
POWER LED (1) will light up.
2)
With the STAND BY switch (10), switch on or
off the automatic standby mode.
Position “AUTO”:
The automatic standby mode is activated.
The subwoofer will automatically be in oper-
ation once an input signal has been applied
and the VOLUME control (2) has been turned
up accordingly. The POWER LED (1) will show
green. If the signal level falls below a certain
value for a few minutes, the subwoofer will
return to the standby mode; the POWER LED
will show red.
Position “ON”:
The automatic standby mode is deactivated.
After switching on, the subwoofer will
always be in operation. The POWER LED(1)
will show green.
Position “OFF”:
The subwoofer is always in standby mode.
The POWER LED (1) will show red. Thus, it
will be possible to set the subwoofer to the
standby mode immediately, e. g. for test-
ing the switch-on threshold in the position
“AUTO” subsequently.
3)
Reproduce sound, e. g. music, via the existing
audio system and add the desired low bass
part with the VOLUME control (2). Only turn
up the control to such an extent that the
sound reproduced will not be distorted.
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