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Thank you very much for choosing the nuBoxx A-125 pro active 
loudspeakers. You will be able to set up your system without any 
problems if you read these operating instructions carefully. 
We will explain the operation, connection and installation so that 
you can achieve the optimum sound quality and fully enjoy your 
nuBoxx speakers! 

Nubert electronic GmbH hereby declares that this product complies 
with the 2014/53/EU directives, provided that it is installed and used in 
accordance with the manufacturer‘s instructions. The full text of the EU 
Declaration of Conformity is available at the following Internet address: 
https://www.nubert.de/konformitaetserklaerungen/716/ 
•  Do not change the serial number on the speaker. It is part of the  
  operating approval. 
•  If the loudspeaker is repaired or modified by workshops or other third  
  parties not authorized by Nubert, it loses its operating license. 
•  Only accessories and devices may be connected which in turn 
  comply with all legal requirements and are approved. 
•  The loudspeaker may only be used for the applications specified in  
  the „Intended Use“ section. 
 

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 environ-
ment 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.  
 

Safety instructions 

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. 
 

Key to the symbols 

   

The triangle symbol with exclamation mark (without additional 

   

comment) indicates important instructions for commissioning,  

   

operation and maintenance of the device.  

 
The term 

Caution!

  next to the triangle symbol indicates a medium 

risk. Failure to observe this warning may result in property damage. 
 
The term 

Danger!

 next to the triangle symbol indicates a high risk. 

Failure to observe this warning may result in death or personal injury 
 
   

This symbol indicates that you must read and observe the 

   

operating instructions and the safety and warning notices in  

   

order to operate the device. 

 
   

This symbol (triangle with lightning) warns of dangerous vol- 

   

tages inside the enclosure and of hazards due to electric shock. 

 
   

This symbol indicates that the device complies with electrical  

   

protection class 2 and therefore does not require earthing. 

 
   

Devices with this symbol may only be used in a dry indoor 

  

environment. 

 

   

Devices and batteries marked with the symbol of the crossed-  

   

out garbage can, must not be discarded as unsorted urban  

   

waste. They may, for example, be taken to the approved    

   

collection points for separate collection from unsorted urban  

waste. For further information, please refer to our General Terms and 
Conditions (GTC/AGB). 
 

Trademarks 

All trademarks and registered trade names are the property of their 
respective owners.  
 

 

 
The Bluetooth word mark and logos are registered trademarks owned 
by Bluetooth SIG, Inc. and any use of such marks by Nubert is under 
license. 
 

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. If you need service, please contact Nubert electronic GmbH 
directly  ([email protected])! 
 

 

Danger of suffocation!

 

Never let children use or play with neither speaker, remote control or 
packaging unattended. There is a risk that children will get caught in 
the packaging film and suffocate. Make sure that children cannot 
remove any small parts from the devices! These parts, like the remote 
control battery, could be swallowed and cause suffocation. In case of 
swallowing any parts, 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. If any of the following 
situations occurs, the loudspeaker must be switched off immediately 
and disconnected from the mains. Contact Nubert electronic GmbH 
([email protected]) immediately! 
•  The speaker has been damaged or has fallen down. 
•  Power cord or plug is damaged 
•  Objects or liquid did get into 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! 

 
 
 
 
 
 
 

Device approval and conformity 

with EC directives 

2

nuBoxx A-125 pro

 

· 03/2022

Summary of Contents for nuBoxx A-125 pro

Page 1: ...ns or problems with the commissioning of your Nubert system please feel free to contact our service team Please have your customer number ready The latest manuals and other helpful information can be...

Page 2: ...tions and the safety and warning notices in order to operate the device This symbol triangle with lightning warns of dangerous vol tages inside the enclosure and of hazards due to electric shock This...

Page 3: ...ushings 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 in order to suspend the loudspeaker cab...

Page 4: ...pro active loudspeakers You will be able to set up your system without any problems if you read these operating instructions carefully We will explain the operation connection and installation so tha...

Page 5: ...rilles Client speaker left Master Speaker right Infrared receiver and status LED Fibre optic cable with TOS Link plugs 1 5 m Master Client loudspeaker interconnect cable 3 0 m USB cable 1 5 m Mains ca...

Page 6: ...atural sound is achieved when the tweeters are approxi mately at ear level But even 20 degrees above or below the tweeter axis the sound is still homogeneous If your active speakers need to be placed...

Page 7: ...reamplifier smartphone tablet via 3 5 mm headphone jack SUB OUT output For analog connection of an active subwoofer By inserting a cinch plug into the SUB OUT a high pass is automatically activated to...

Page 8: ...low the bass intensity to be raised and lowered while the mid high keys can be used to adjust the mid high range by up to 6 dB in 2 dB increments After reaching the end points of the available range t...

Page 9: ...e remote control the automatic switch on function is deactivated Factory Default To reset the speaker to it s factory settings turn the speaker on and within the first 5 seconds press the mute key x o...

Page 10: ...o do this navigate to the Output section as described above Click on the speaker who se settings you want to adjust You can now select the output format from the drop down menu Within Windows 10 navig...

Page 11: ...d off with low pressure If the dust cannot be completely removed a make up brush from the drugstore is suitable Service If you have any questions or problems during the commissioning of your Nubert sy...

Page 12: ...iscretion It is assumed that a quality defect which becomes apparent within the warranty period was already present at the time of the transfer of perils Replaced parts or products returned in the cas...

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