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Disposal
If the device is no longer usable, dispose of it in accordance with the current statuto-
ry regulations.
Troubleshooting
By purchasing the subwoofer, you have acquired a product which has been
designed to the state of the art and is operationally reliable.
However, problems and malfunctions may still occur.
For this reason, we wish to describe to you here how you can eliminate possible dis-
turbances yourself.
Always observe the safety instructions!
Problem
Solution
No function,
• Is the device switched on?
operating display
• Is the mains plug inserted in the mains socket?
LED (3) does not
• Is the active subwoofer fuse defective?
light up or it
• Check the mains socket. Is it supplied correctly with current?
lights up red.
• Is there an input signal) with operating mode switch "4”
in position "AUTO”.
• Has the fuse switch responded? In this case, switch off the
active subwoofer and then on again.
The operating
• Is the control SUBWOOFER LEVEL (5) set to minimum
display (3) will
(left stop).
light up green but
• Is the amplifier connected correctly to the input?
there is no tone
• Is the amplifier switched on and the loudspeaker there not
to be heard.
set to the minimum?
• Is a mute switch possibly activated on the amplifier?
• Has the fuse switch responded? In this case, switch off the
active subwoofer and then on again.
There is a
• Are the signal cables from the amplifier in order?
buzzing sound
Repairs other than those just described should only be performed
by an authorised electrician.
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• Do not expose the device to high temperatures, dripping or spray water, strong
vibration or high mechanical loads.
• Do not keep any magnetic storage media such as computer disks, videocassettes
or similar near the active subwoofer as the magnetic field of the loudspeaker may
corrupt the information stored on these media.
• Do not place open sources of fire such as burning candles on the device.
• Do not leave packaging material lying around carelessly. Plastic foil/bags and
polystyrene parts etc. could become dangerous toys for children.
• Never operate the device without supervision.
• Do not use the device in a tropical climate.
• Observe also the safety and operating instructions of any other appliances that are
connected to the device.
• If you are not clear about correct connection or should queries arise which
are not covered by the operating instructions, please contact our technical
support or another specialist.
Function description
The active subwoofer is controlled by a pre-amplifier signal through the cinch input.
The built-in active duplexer filters the basic frequencies out of the input signal; the
output stage amplifies them and passes them on over the built-in subwoofer loud-
speaker.
The 15” subwoofer loudspeaker is built in to a bass-reflex housing which contains
the complete amplifier electronics.
The amplifier component possesses an automatic switch, i.e. it switches on auto-
matically when a signal is pending at the input.
To protect the output stage, a protective circuit in integrated which switches it off in
case of overheating or short at them output.
The volume of the subwoofer and its insulating frequency can be controlled. The
phasing can be switched over.
The brand logo on the front is illuminated strikingly during operation.
