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Thank you very much for choosing 

Nubert 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  

optimum sound quality and fully enjoy  

your new speakers!

The Nubert team wishes you 

happy listening!

Mounting the Speaker Grille

First, mount the spacers on the grille (see the separate grille mount-

ing instructions!), then carefully mount the grille on the speaker by 

lining up the spacers of the grille with the matching rubber receivers 

on the loudspeaker and pushing the grille in place. Be careful not to 

scratch the speaker!

Licensing information:

Manufactured under license from Dolby Laboratories. 

Dolby, Dolby Atmos, and the “double-D“ symbol are  

trademarks of Dolby Laboratories. 

Low Temperatures and Sound

When speakers are shipped and delivered during the cold months 

of the year, it is imperative that they adapt to the temperature of 

the living area. Low temperatures have a considerable influence on 

the moving parts of a loudspeaker such as diaphragm, voice coil, 

bead and spider. The ability of these components to follow rapid 

oscillations or to perform large excursions is thus significantly re-

stricted. This is not dangerous, but “frozen” speakers are far from 

their acoustic peak. 

Hence our tip:

 When your new speakers arrive on a cold winter’s 

day, just give them a few hours to acclimatise. Your Nubert speakers 

will thank you with the superior sound quality you have come to 

expect from us.

Safety Instructions

• Turn off your amplifier before connecting the speaker cables

• Make sure the speaker cables are firmly attached

• Place the speaker in a dry location

• Do not place the speaker in direct sunlight

• Overload protection: the nuLine RS-54 has an internal automa-

tic overload protection fuse, but please be aware that small am-

plifiers can damage your speakers too. At high sound pressure

levels, small amplifiers can start to distort which can damage the

tweeters. If the speakers begin to sound harsh or distorted, turn

down the amplifier to avoid damage to your speakers.

Elastic Bumpers (bumpons)

The bumpons provide firm, no-slip footing for your speakers and do 

not leave marks or dents.

Do not mount the adhesive elastic bumpers until you are certain 

you want to keep the speakers. The supplied brand-name bumpers 

use a strong adhesive and are difficult to remove, especially if they 

have been attached to the loudspeaker for a longer period of time.

If you wish to remove them, warm them up with a hairdryer or 

similar before removing them carefully.

Whether you should use the larger or the smaller bumpers de-

pends on the application. Please see page 4 “Setup”.

nuLine RS-54

 · 09/2020 EN

2x

Unpacking and Scope of Delivery

Unpacking 

When unpacking your speaker, do not use sharp or pointed ob-

jects to avoid possible damage to the enclosure. Please keep the 

packaging in a safe place in case you need to transport the speak-

er at a later date.

Scope of Delivery

If the delivery is complete, it contains the following parts:

• 2 speakers

• 2 metal grilles with mounting kit

• 2 loudspeaker cables 0,75 mm

2

 (consider these as „backup“-

cables in case you want to get started and don‘t have any 

speaker cables)

• 8 large adhesive bumpers

• 8 small adhesive bumpers

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