nuPro XS-4000 RC Almost Good

Before connecting and commissioning the device, the operating instructions—and in particular the safety instructions—must be read in full. For your own safety, be sure to observe all warnings and safety instructions in this manual and on the loudspeaker. Apart from the handling steps described, no work may be carried out on the loudspeaker by the user. Keep this document in a place where you can access it at any time. It must also be handed over to any subsequent owner.

Intended Use

This loudspeaker is intended solely for sound reproduction in dry indoor environments. Use the loudspeaker only as described in this manual. Any other use (especially safety-relevant or medical applications, outdoor installation as with specially IP-certified products) is considered improper and may result in property damage or even personal injury. Nubert electronic GmbH accepts no liability for damage resulting from improper use.

General Notes

Never operate the loudspeaker unattended!

Risk of electric shock!

To avoid the risk of electric shock, the loudspeaker must not be opened by the operator. There are no user-serviceable parts inside the loudspeaker. Service work and repairs are reserved for qualified personnel authorized by Nubert. In the event of service, please contact Nubert electronic GmbH directly (info@nubert.de)!

Risk of suffocation!

Never allow children to use the loudspeaker or the remote control unsupervised or play with the packaging! There is a risk that children could become entangled in the packaging film and suffocate. Ensure that children cannot remove small parts from the devices! These parts, as well as the remote control battery, could be swallowed and lead to suffocation. In case of ingestion of any parts, contact a doctor immediately!

Risk of injury or damage!

When moving the loudspeaker, proceed with the necessary care to avoid injury and damage!

Caution!

Since the loudspeaker can only be completely disconnected from the mains at the power input on the rear of the device or by unplugging the power cord from the socket, it must be positioned so that you have free access to the power input or the power plug. If any of the following conditions occur, the loudspeaker must be switched off immediately and disconnected from the mains. Contact Nubert electronic GmbH without delay (info@nubert.de):

• The loudspeaker has been damaged or has fallen.
• The power cable or plug is damaged.
• Objects or liquids have entered the loudspeaker.
• The loudspeaker has been/is exposed to excessive moisture or rain.
• The loudspeaker is not functioning properly or shows a significant reduction in performance.
• The loudspeaker smells burnt, produces smoke, or makes unusual noises.

Use only accessories recommended by Nubert!

Placement Instructions

Caution!

An unstable placement can lead to damage to the loudspeaker.

• Place the loudspeaker only on a flat, stable surface and ensure that it cannot be knocked over!
• Also ensure that no accidental pulling on the cables can occur, to avoid toppling the loudspeaker or damaging the connection sockets!
• Keep the loudspeaker away from strong mechanical shocks!

Caution!

Excessive heat build-up inside the device can shorten its service life or cause a fire.

• Never cover the rear of the loudspeaker! Ensure that there is at least 10 cm of free space at the rear and sufficient air circulation!
• Do not operate the loudspeaker or the remote control near heat sources such as radiators or stoves!
• Do not expose the loudspeaker or the remote control to direct sunlight!
• Never place burning candles or similar open flames on the loudspeaker!

Risk of explosion!

Placing the device in unsuitable locations can cause explosions. Do not use the loudspeaker and the remote control:

• in fire- or explosion-hazard environments!
• at extremely low or extremely high temperatures!
• near flammable gases or vapors!
• in areas with heavy dust!
• near easily flammable materials!

Risk of electric shock!

The loudspeaker carries mains voltage inside and, in some areas, voltages above 35 V AC or DC. It has no special protection against liquids or objects entering the system. There is therefore a risk of fatal electric shock.

• Never touch the loudspeaker with wet hands!
• Use the loudspeaker only in a dry location!
• 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 containers with liquids (e.g., flower vases) on the loudspeaker or in the immediate vicinity!
• If the loudspeaker is brought from a cold environment into a warm room, condensation may form inside. Wait at least 6 hours before switching it on, until it has reached room temperature and is dry!
• Do not use the loudspeaker during rapid temperature changes!
• No objects or foreign bodies may enter the device.
• If the loudspeaker has come into contact with liquids or if objects have entered it, unplug it immediately and contact the Nubert electronic GmbH!

Risk of injury or damage!

Applies to loudspeakers with threaded inserts on the underside of the cabinet: The threaded inserts on the underside may only be used to mount the speaker upright on suitable base plates! They are not designed for tensile loads and must therefore not be used as mounts for hooks or similar to suspend the speaker. A falling speaker can cause serious injuries and damage.

Connection Instructions

General connection notes

• Unplug the power cord before making any changes to the system wiring!
• Ensure that all connections have been made correctly and that all plugs are firmly seated before connecting the loudspeaker to the mains!
• Use only the intended cables and connectors for the connections! Otherwise, damage or malfunctions may result.
• When disconnecting connections on the loudspeaker, always pull on the plug, never on the cable!
• Ensure that all plugs sit firmly in their sockets!
• Use only cables and accessories recommended by Nubert!

Risk of electric shock!

Faulty power supply systems or excessive mains voltage can cause electric shocks.

• All power supply or antenna systems connected to the loudspeaker must comply with applicable legal regulations and standards and be professionally installed by a licensed company.
• Use only the supplied power cable to connect the loudspeaker. The power cable and its plug must never be modified.
• Ensure that the mains voltage at your location matches the loudspeaker’s requirements! The correct supply voltage can be found on the label on the back of the loudspeaker. It must not be connected to other power supplies.
• Class 1 devices must be connected to the protective conductor of the electrical installation, which is grounded. Ensure that the protective conductor installation at the connection point is properly executed!
• When laying power cables, make sure they cannot be damaged (for example by heat or mechanical stress)! Pay special attention to the areas around plugs and distributors!

Caution!

Power surges in the mains (for example due to lightning strikes) can damage or destroy the device and power supply.

• A surge protection element can provide some safety against excessive mains voltage.
• Maximum safety against damage can only be ensured by completely disconnecting your devices from the mains and antenna systems. Therefore, during thunderstorms or lightning risk, unplug the power cord and any antenna connectors from your Hi-Fi system!
• If the loudspeaker is not used for a longer period of time or is left unattended, the power supply should be interrupted. Unplug the power cord from the socket!

Remote Control and Battery

This product includes a remote control and a battery. The following must be observed when handling remote controls and batteries:

• When the batteries are depleted, the range of the remote control decreases significantly. Replace the batteries immediately in such a case.
• Always use high-quality lithium button cells of type CR2025 as replacement batteries.
• When inserting the battery into the battery compartment, ensure the correct polarity by observing the + and − symbols in the compartment!

Caution!

Improper handling can cause 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 places with high humidity or particularly high or low temperatures!

Danger!

Leaking or exploding batteries can pose a health hazard and cause material damage.

• If the device is not used for a longer period of time or if the batteries are depleted, remove them from the remote control to prevent discharge, leakage, or explosion.
• Leaking batteries must be replaced immediately.
• If you find a leaking battery, do not touch the leaked material and dispose of the batteries immediately!
• Do not touch leaking batteries!
• If your skin, eyes, or mouth come into contact with leaked material, rinse the affected area immediately with water and consult a doctor without delay!

Risk of internal chemical burns!

Swallowing batteries can cause severe internal burns within a short time and may lead to death.

• Ensure that batteries cannot enter your body in any way, especially 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 suspect that batteries have been swallowed, introduced into the body, or inserted into any body opening, contact a doctor immediately!

Care and Cleaning Tips

Caution!

Improper handling of the loudspeaker can cause damage.

• Always unplug the power cord before cleaning the loudspeaker!
• Before switching on again, ensure that all connections are correct, no short circuits are present, and the loudspeaker is completely dry.
• Never use harsh cleaning agents or solvents such as gasoline, alcohol, or similar!

Cabinet

We recommend using a standard glass cleaner sprayed onto a cotton cloth. This allows almost all fingerprints and dirt to be removed easily. Alternatively, you can also use glass-foam cleaner. We advise against using microfiber cloths! These can cause fine scratches on the surface.

Membranes and Speaker Chassis

To remove dust from a speaker chassis, a lint-free cotton cloth is sufficient, with which the membrane can be lightly wiped with very little pressure. The tweeters of all Nubert loudspeakers are equipped with a protective grille, so they can also be wiped with light pressure. If the dust cannot be completely removed, a makeup brush from a drugstore is suitable.

General Safety Information

The entire operating manual, in particular the safety instructions, must be read in full before connecting and commissioning the device. For your own safety, be sure to follow all warnings and safety instructions in this manual and on the speaker. The user is not permitted to carry out any work on the loudspeaker other than the described work. Keep this document so that you have access to it at all times. Furthermore, it must also be handed over to possible re-owners.

Intended Use

This speaker is designed exclusively for sound reproduction in dry rooms. Use the speaker only as described in this manual. Any other use (particularly safety-relevant or medical use, installation in open environments like IP-certified products) is considered improper and may result in property damage or even personal injury. Nubert electronic GmbH does not assume any liability for damages caused by improper use.

General Information

• Never operate the loudspeaker unattended!

Danger of Electric Shock!

• To avoid the risk of electric shock, the speaker may not be opened by the user. There are no user-serviceable parts inside the speaker.
• Service work and repairs are reserved for qualified specialists authorized by Nubert. For service, contact Nubert electronic GmbH directly at info@nubert.de.

Danger of Suffocation!

• Never let children use or play with the speaker, remote control, or packaging unattended. Packaging film poses a suffocation risk.
• Ensure children cannot remove or swallow small parts like the remote control battery. In case of swallowing, contact a doctor immediately!

Danger of Injury or Damage!

• When moving the speaker, take care to avoid injury and damage!

Caution!

Since the speaker can only be completely disconnected from the mains at the mains input on the rear of the unit or by pulling the mains plug from the socket, it must be positioned so that you have free access to the mains input or mains plug.

Immediate Actions

If any of the following situations occurs, the loudspeaker must be switched off immediately and disconnected from the mains. Contact Nubert electronic GmbH directly at info@nubert.de.

• The speaker has been damaged or has fallen down.
• Power cord or plug is damaged.
• Objects or liquid have entered the loudspeaker.
• The speaker has been exposed to excessive moisture or rain.
• The speaker does not work properly or exhibits a significant reduction in performance.
• The loudspeaker smells burnt, develops smoke, or makes unusual noises.

Only use accessories recommended by Nubert!

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!
• Ensure 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 the speaker 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 vapors!
• 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 speaker or in the immediate vicinity!
• If the loudspeaker is moved from a cold environment to a warm room, condensation 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 electronic GmbH: info@nubert.de.

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 loudspeaker enclosures are not designed for tensile loads and must therefore not be used as holders for hooks or similar devices 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!
• Ensure 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 comply 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. Ensure proper installation of the protective earth.
• When laying the power cables, ensure 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.
• The greatest possible protection against damage can only be achieved with complete separation from the mains supply. In case of thunderstorms or lightning danger, 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, disconnect the mains plug from the socket!

Remote Control and Battery

This product comes with a remote control and a battery. Please observe the following when handling them:

• If the batteries are discharged, the range of the remote control will decrease significantly. Replace batteries immediately with high-quality CR2025 lithium button cells.
• Ensure the polarity is correct when inserting the battery into the compartment.

Caution!

Improper handling can cause 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 extreme temperatures!

Danger!

Leaking or exploding batteries pose health hazards and can damage goods.

• If the device is unused for long periods or if the batteries are depleted, remove them from the remote control to prevent discharge, leakage, or explosions.
• Replace leaking batteries immediately.
• If a leaking battery is found, do not touch the material and dispose of it properly.
• If leaking material comes into contact with skin, eyes, or mouth, rinse immediately with water and consult a doctor!

Danger! Do Not Ingest Battery - Chemical Burn Hazard!

• Ingesting batteries can cause severe internal burns and death within a short time span.
• Ensure batteries cannot be swallowed or placed inside any part of the body.
• 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 suspect that a battery has been swallowed or placed inside the body, seek immediate medical attention!

Care and Cleaning Tips

Caution!

Improper handling of the speaker may result in damage.

• Always unplug the speaker before cleaning it!
• Before recommissioning, make sure that all connections are correct, that there are no short circuits, and that the speaker is completely dry.
• Never use strong cleaning agents or solvents such as petrol, spirit, or similar!

Enclosure

We recommend using a commercial window cleaner sprayed onto a cotton cloth. This allows almost all fingerprints and dust to be easily removed. Alternatively, you can also use window active foam. We advise against the use of microfibre cloths! These can cause mini scratches on the surface.

Diaphragms and Speaker Chassis

To remove dust from a loudspeaker chassis, a lint-free cotton cloth is sufficient to wipe the membrane lightly with very little pressure. The tweeters of all Nubert loudspeakers are equipped with a protective grille, so they can also be wiped off with low pressure. If the dust cannot be completely removed, a make-up brush from the drugstore is suitable.