4
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System 4
Safety guidelines
General note:
Make sure to read this operating manual care-
fully and in its entirety. Before plugging in the units for the
first time, make sure you have complied with all relevant safety
and operating instructions. Keep this operating manual in a
safe place so you can refer to it at a later date if necessary.
Always:
If in doubt, consult the operating manual. Make sure
to comply with all instructions regarding the units' setup and
ongoing operation.
Cleaning:
Avoid cleaning the units with domestic cleaning
agents, as these may scratch the surface. Just use a dry cloth.
Before cleaning a unit, always unplug the power cable.
Humidity and sunlight:
Never operate the unit in humid or
wet spaces, e.g., near a bath tub, shower, wash basin, drain, in
a damp basement, or near a swimming pool. Never expose the
loudspeaker to humidity, and avoid exposing it to direct sourc-
es of sunlight. Do not expose device to dripping or splashing
water. Do not place objects filled with liquids, such as vases on
the device.
Placement:
Never mount the units loosely in a vehicle, on an
unstable surface, on a loose stand, on unsuitable furniture, or
with insufficient bracing. The loudspeakers could topple and
cause personal injuries, which you will be liable for. Especially
when speaker cabinets are mounted on stands or placed on
top of TV sets/monitors, they may topple due to external stress
(cable being pulled, tripping over cable, accidental physical
contact) – even if they seem to be mounted quite securely. As
a result of their weight, toppling speaker cabinets can cause
considerable damage, as well as becoming badly damaged
themselves. The same applies to undersized or unprofession-
ally installed wall-mounting brackets, particularly on light
walls. Always use adequately sized wall brackets for mount-
ing loudspeakers, and ensure that the wall can withstand the
stress. Never mount the units near a heat source. This could
be a heater or oven, but also any other electrical device that
heats up during operation (e.g., amplifier). Similarly, never place
a heat source on top of the loudspeakers, such as a fan heater
or candles.
Ventilation:
There are several ventilation slits and openings
in the unit's housing. These are designed to ensure reliable
operation and protect the unit from overheating. Never block
or cover the ventilation slits; do not place the unit on a soft
surface such as a bed, couch, carpet, etc., as this blocks the
ventilation slits in the bottom of the housing. Do not put any
newspapers, tablecloths, etc., on top of the unit. Most impor-
tantly, do not cover up the heatsink of the amplifier section or
expose it to direct sunlight. Conversely, you should generally
not attempt to provide additional cooling to the unit yourself.
This is not necessary.
Power source:
Make sure to connect the subwoofer to a power
source that provides the correct voltage, i.e., the voltage in-
dicated on the type plate. If you are unsure about the voltage
provided by your domestic power connection, please contact
us or your local electricity provider for advice. The unit does
not require earthing. When connecting to the mains power
socket, always use the supplied two-pole power cable. Under no
circumstances should you modify the power cable, as it must
comply with the official polarity and earthing regulations. Make
sure to plug the power cable only into a double-pole socket.
Cables:
Lay all the cables flush with the floor and walls. Avoid
any loops in your cables that could cause people to trip up.
Cable loops can also cause electrical interference and degrade
the sound quality. Make sure to lay your power cables out of
reach so that they are not stood on or squashed by heavy ob-
jects. If you notice any cable damage, replace the cable. Pay
special attention to all plug connectors, the mains socket, and
the subwoofer's connector panel. Regularly check all powered
cables to and from the loudspeakers for insulation issues and
breakage. If you detect a fault, immediately power down all
connected units, unplug the cables and replace the defective
cable.
Disuse:
During prolonged periods of disuse (holidays, etc.), al-
ways unplug the subwoofer from the mains socket.
Thunderstorms:
In the event of a thunderstorm, switch off
and unplug the unit as soon as you can in order to avoid dam-
age from lightning strikes.
Overloading:
Never overload your wall sockets, extension ca-
bles and multiboxes, or the integrated power sockets on your
electrical devices. Power overloads can cause short circuits
and fires. Also avoid turning up the volume control excessively
on your amplifier, particularly if you are also boosting the bass
frequencies (bass control, loudness button, bass boost button,
etc.).
Liquid and foreign substances:
Liquids or other foreign sub-
stances should never get inside the unit, as they may interfere
with exposed live parts and cause short circuits or fires. Abso-
lutely avoid spilling any type of liquid onto the unit. In case of
a fault: Never attempt to repair the unit yourself. Always con-
tact our support team first and discuss the fault with them.
If appropriate, they may give you instructions on how to clear
the fault. If this is not possible, send the unit directly to our
service address.
Transport:
Take utmost care when transporting the unit, and
use a sack barrow if possible. Be aware that both the sack
barrow and the unit can easily fall over as a result of sudden
stopping or jolting (uneven ground, lurching movements, etc.).
Replacement parts:
During the period of warranty, Laut-
sprecher Teufel will supply all required replacement parts.
Your warranty will not be voided as long as you use Teufel spare
parts to replace any defective components.
Unusual noises:
If any unusual noises occur during operation,
or if the sound gets distorted, immediately turn down the am-
plifier volume to a level where the sound returns to normal.
Replacing the fuse:
Unplug the power cable before replacing the fuse. Make sure
that the replacement fuse has the same rating as the defec-
tive fuse.
Speaker volume:
Excessive loudspeaker volume can cause ir-
reversible hearing loss. The subwoofer may emit high sound
pressure levels very unexpectedly when it is suddenly trig-
gered into activity by a bass impulse (“Standby/Auto On” mode)
– particularly if the unit is on full volume. As well as physical
hearing loss, also watch out for psychological stress caused by
excessive volume. Children and pets are particularly sensitive
to noise. Always set the volume control of your audio system
to a level that is appropriate to the surroundings. When the
system is playing at high volume, do not stand too closely to
the subwoofer and never put your ears directly up to any of
the loudspeakers.
Please read the following
safety guidelines very
carefully.
Packaging materials,
particularly plastic bags and
foils, should be kept out of
childrens' reach, as these can be
dangerous (e.g., risk
of suffocation).
Never leave your
children alone with electrical
devices, as there is potentially
always a risk of electrical shock.
In case of an emergency:
Immediately disconnect the
unit's power plug from the
mains socket. In the following
cases, please contact one of our
service technicians:
4
Power plug or cable
is damaged
4
Liquid or other foreign
substances have entered the
interior of the unit
4
The unit has been directly
exposed to rain or another
type of liquid
4
The unit is inoperational
even though you have
followed all the operating
instructions
4
The unit has been dropped
or o t h er w i s e d a m a g e d
Lautsprecher Teufel is not
liable for any incidents result-
ing from disregard for the
safety guidelines.
