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• Do not use any cleaning agents or chemical solvents when cleaning, as these could damage the
surface of the device.
• Repairs must always be conducted by qualified specialists, as you might otherwise be exposed to
dangerous high voltage levels or other hazards.
THE ACTIVE SUBWOOFER MAGNAT QUANTUM 731A
This subwoofer has been adapted to provide the best visual and acoustic match to the MAGNAT Quantum
range of loudspeakers. However, it goes without saying that it may be combined with other loudspeakers.
When connecting your loudspeaker, please make sure that everything has been switched off. Furthermore,
make sure that all loudspeaker cables are connected to the proper poles, i.e. the positive pole for the
output is connected to the positive pole for the input and the negative pole with the negative pole. Please
also refer to your receiver's/amplifier's and loudspeakers' instructions.
POSITIONING
The frequency range reproduced by the subwoofer cannot be pinpointed by the human ear. That's why
positioning generally doesn't present any problems. However, it is preferable to place the speaker close
to the front loudspeaker in front of the listening position. You should also make sure that the distance from
the sides and from the rear to items and walls is at least 20 centimetres as otherwise bass reproduction
may be impaired.
THE SUBWOOFER'S OPERATING ELEMENTS (FIG. 1)
Mains connection (1)
The subwoofer is equipped with an integrated amplifier and needs to be connected to a mains outlet by
means of the supplied mains cable.
Operating mode switch (2), operating state LED (3), power switch (4)
Power switch ON
Operating mode
Subwoofer is in permanent operation, the LED is green.
switch ON
Favourable setting for the reproduction of programmes
with long quiet passages (this prevents the subwoofer
from switching off unintentionally).
Operating mode
The
AUTO
(recommended setting).
The subwoofer switches on automatically when it
receives a signal from the receiver, the LED turns
green.
It automatically switches to standby after receiving no
signals for some minutes, the LED turns red.
AV input "LFE/SUB" (5)
Connect your receiver's low-level subwoofer output (sub-pre-out) to the subwoofer's AV input (see Fig.
2). You will require a mono-cinch cable for this (not supplied).
automatic
switching
on/off
is
activated
8
Power switch OFF
The subwoofer is
switched off, LED is off.
This is the setting for
when subwoofer isn't
used over long periods.
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