Installation instructions
Caution!
An unstable location can damage the speaker.
• Only place the loudspeaker on a flat, stable surface and make sure that it
cannot be knocked over!
• Also make sure that no unintentional pulling can occur on the cables to avoid
knocking over the speaker or damaging the connection sockets!
• Keep strong mechanical shocks away from the loudspeaker!
Caution!
Excessive heat build-up inside the unit can shorten its service life or lead to fire.
• Never cover the back of the speaker! Make sure that there is a clearance of at
least 10 cm and sufficient air circulation in the back area!
• Do not operate the speaker and remote control near heat sources such as
radiators or stoves!
• Do not set the speaker and remote control to direct sunlight.
• Do not expose to direct sunlight!
• Never place burning candles or similar open fire sources on the loudspeaker!
Danger of explosion!
Installation in unsuitable locations can cause explosions. Do not use the speaker
or remote control
• in environments where there is a risk of fire or explosion!
• at extremely low or extremely high temperatures!
• near flammable gases or vapours!
• near strong dust!
• near flammable materials!
Danger of electric shock!
The loudspeaker carries mains voltage and voltages higher than 35 V AC or DC
inside. It has no special protection against the intrusion of liquids or objects into
the system. There is therefore a risk of lethal electric shock.
• Never touch the speaker with wet hands!
• Only use the speaker in a dry place!
• Do not operate it outdoors or in damp rooms!
• The loudspeaker must be protected from liquids of all kinds, including dripping
and splashing water.
• Do not place any containers containing liquids (e.g. flower vases) on the speak-
er or in the immediate vicinity!
• If the loudspeaker is moved from a cold environment to a warm room, conden-
sation may form inside the unit. Wait at least six hours until the loudspeaker
has reached room temperature and is dry before switching it on!
• No objects or foreign bodies may get into the device.
• Should the loudspeaker come into contact with liquids or should objects have
got inside, please unplug the mains plug immediately and contact Nubert elec-
tronic GmbH ([email protected])!
Danger of injury or damage!
For speakers with threaded bushings on the underside:
The threaded bushings may be used for upright mounting of the loudspeaker on
suitable base plates only. The threaded bushings on the underside of the loud-
speaker enclosures are not designed for tensile loads and must therefore not be
used as holders for hooks or similar devices in order to suspend the loudspeaker
cabinet. A falling speaker may cause serious injury and damage.
Connection instructions
General connection instructions
• Disconnect the mains plug before changing any wiring on the system!
• Make sure that all connections have been made correctly and that all plugs
are firmly seated in the sockets before connecting the speaker to the mains.
• Use only the intended cables or plug connections for the connections! Failure
to do so may result in damage or malfunction.
• If you want to disconnect connections on the loudspeaker, always pull the plug,
never the cable!
• Ensure that all plugs are firmly seated in the sockets!
• Only use cables and accessories recommended by Nubert!
Danger of electric shock!
Faulty mains supply systems or excessive mains voltage can lead to electric
shocks.
• All power supply or antenna systems connected to the loudspeaker must com-
ply with all applicable laws and regulations and be professionally installed by
an approved installation company.
• Use only the appropriate power cord to connect the speaker. Do not modify
the power cord or its plug.
• Make sure that the mains voltage at your location matches the requirements
of the loudspeaker! The correct power supply can be found on the label on the
back of the speaker. It must not be connected to other power supplies.
• Devices of Class 1 construction must be connected to the mains power socket
outlet with a protective earth connection. Make sure that the installation of the
protective earth is carried out correctly!
• When laying the power cables, make sure that they cannot be damaged (e.g.
by heating or mechanical stress)! Pay particular attention to the areas of the
connectors and distributors!
Caution!
Overvoltage in the power supply system (e.g. due to lightning) can damage or
destroy the device and power supply unit.
• An overvoltage protection element can provide a certain degree of protection
against excessively high voltages in the power grid.
• However, the greatest possible protection against damage can only be
achieved with the complete separation from the mains supply.In case of thun-
derstorms or danger of lightning strikes, disconnect the mains cable from the
socket and any antenna plugs from your hi-fi system!
• If the speaker is not used for a long period of time or is unattended, the power
supply should be disconnected. Disconnect the mains plug from the socket!
Remote control and battery
This product comes with a remote control and a battery. The following must be
observed when handling remote controls and batteries:
If the batteries are discharged, the range of the remote control will de-
crease significantly. If this happens, replace the batteries immediately. Always
use high-quality CR2025 lithium button cells as replacement batteries. Make
sure that the polarity is correct when inserting the battery into the battery com-
partment!
Caution!
Improper handling can lead to material damage.
• Do not drop the remote control!
• Do not expose the remote control and battery to water or other liquids!
• Do not operate or store the remote control and battery in locations with high
humidity or high or low temperature!
Danger!
Leaking or exploding batteries can pose a health hazard and cause damage to
goods.
• If you do not use the device for a long time or if the batteries are depleted,
remove the batteries from the remote control to prevent discharge, leakage of
acid or explosions.
• Leaking batteries must be replaced immediately.
• If you find a leaking battery, do not touch the leaking material and dispose of
the batteries immediately!
• Do not touch leaking batteries!
• Should your skin, eyes or mouth come into contact with the leaking material,
clean the affected area immediately with water and contact a doctor!
Danger! Do not ingest battery, chemical burn hazard!
Ingestion of batteries can cause severe internal burns and death within a short
time span.
• Ensure that batteries do not get into your body by any means, in particular that
they cannot be swallowed!
• Keep new and used batteries away from children.
• If the battery compartment does not close securely, stop using the product and
keep it away from children.
• If you think that batteries might have been swallowed or placed inside any part
of the body, seek immediate medical attention!
Equipment marked with this symbol must not be disposed of with house-
hold waste. Refer to the Disposal and Battery Return section at the end of this
manual.
3
EN 4/2020
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nuPro AS-250
