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nuPro X-Serie

nuPro XS-4000 RC

  • Pro flexibility: Ideal for hi-fi, home cinema, studio
  • Pro reprint: A full 360 watts of continuous power
  • Pro bass: Incredible 30 Hz lower cut-off frequency
  • Pro Professionalism: Many acoustic customisation options including EQ
  • Pro Hightech: App control and X-Room calibration
  • Pro optics: No cables thanks to X-Connect
  • Pro connection options: Bluetooth aptX HD, HDMI ARC, XLR, AES/EBU
  • Pro high quality: lacquered surfaces, OLED display, premium remote control
nuPro X-4000

An emphatic source of energy

A floorstanding speaker doesn't fit - but you still don't want to do without emphasis or bass? Our Nubert nuPro XS-4000 RC is ready for just such a case. With a full 360 watts of continuous power, it is also ideally suited to larger listening rooms. Thanks to resilient, acoustically precisely tuned drivers, the output of the power amplifiers can be optimally realised. State-of-the-art DSP technology processes up to 384 kHz/32-bit and stands for optimum control, while the variety of connections (HDMI-ARC, XLR, USB and AES/EBU plus Bluetooth aptHD) makes the nuPro XS-4000 RC even more valuable. Pure high-tech is added with the X-Remote app including integrated X-Room Calibration.

nuPro X-4000 mit TV

Powerful power pack

Thanks to 360 watts of continuous power, highly resilient chassis and sophisticated DSP control, the nuPro XS-4000 RC proves to be a high-performance speaker and even a fully-fledged replacement for the classic stereo system in the living room. Equipped with state-of-the-art Bluetooth including aptX HD, nothing stands in the way of modern wireless streaming.

Freedom of choice for connections

Thanks to its enormous variety of connections, the XS-4000 RC is ready for a wide range of applications: USB, XLR, AES/EBU, optical and coaxial open up many options on the PC or for demanding studio applications. And with the optional HDMI ARC adapter, it finally becomes a living room hero and can be connected directly to the Smart TV.

nuPro X-3000 mit Subwoofer

Optional "bass extension"

The nuPro XS-4000 RC is extremely powerful in the bass range. Nevertheless, there are those who enjoy the low frequencies and for whom this is not enough. For these users, we have our nuSub portfolio up our sleeve. Here you will find compact, powerful active subwoofers as a suitable addition, which can be used either wired or wirelessly.

nuPro X-4000 mit Smartphone

Modern times

The nuPro XS-4000 RC with Nubert's innovative X-Remote app, in which our ingenious X-Room calibration for calibrating the bass range (20 Hz to 160 Hz) using fully parametric EQs is integrated, has these features. Convenient control is therefore not rocket science. An elegant remote control is included for lovers of classic operating procedures.


DSP technology 

State-of-the-art DSP technology that processes up to 384 kHz/32-bit is the key to the performance of our nuPro XS series. The drivers are each individually controlled and have a separate power amplifier - for maximum precision and exorbitant dynamics.

X-Connect and X-Connect Surround  

Signal transmission between a pair of nuPro XS speakers takes place using the high-resolution X-Connect wireless standard. A big plus point: thanks to X-Connect Surround, the speakers are literally receptive not only for stereo but also for surround applications, allowing you to set up a powerful multi-channel setup. Further information

X-Remote App


Of course, we include a handy premium remote control with all nuPro XS speakers. But with our X-Remote app, you also have another convenient option for remote control. Working with the energy-saving Bluetooth LE, you will find all setting options and functions clearly arranged in the app.

X-Room Calibration

Calibration - that always sounds like a lot of work and a lot of expertise. Not with our X-Room calibration, which conveniently corrects the bass range from 20 to 160 Hz by -/+ 6 dB using a fully parametric EQ via smartphone. You'll be enjoying pure, dynamic sound in no time at all. For Android devices, an additional microphone available from us is required due to different hardware equipment.

X-Room Calibration
nuPro X-4000 RC mit und ohne Blende


Our nuPro XS models have a silky matt finish and are lacquered in several layers. The choice is yours: White for the perfect living room integration or black for the classic technical look?


The trend is towards seamless living room integration and a discreet look for loudspeakers. The design brief was therefore clear: a timeless, simple front with gentle curves and no visible screws. The magnetic cover is extremely slim. With curves that adapt perfectly to the shape of the housing. The large, integrated display always provides information about important current settings.

Series overview

Our top-of-the-range active loudspeaker range is the nuPro XS series with wireless signal transmission between the components - X-Connect and X-Connect Surround are the "magic words". Equipped in this way, stereo and multi-channel setups can be easily realised. The series includes pairs of floor-standing and bookshelf speakers as well as a particularly powerful soundbar. Efficient power amplifiers with outstanding performance, separately for the respective chassis and controlled by high-tech DSP, are an important feature. The system can be operated using the supplied premium remote control and/or the Nubert X-Remote app with integrated X-Room calibration.

nuPro X-Serie
Nubert Hörraum nuBoxx

Committed to honest sound

We are a German company that has been developing and selling speakers directly for over 45 years. We stand for neutral reproduction so that you receive exactly the same signal that is present on the source. We add nothing and leave nothing out. We promise! You can find more information about our philosophy here.

Nubert Gebäude

Nubert has more to offer

We develop all nuPro models in Schwäbisch Gmünd. Our engineers optimise every detail, from the cabinet and drivers to the sound tuning. Once series production has started, all nuPro models are tested by us in Schwäbisch Gmünd for appearance, technology and sound so that you receive a perfect product.

Zweite Wahl

This product as 2nd choice

In some installation locations - for example with rearspeakers behind a curtain - the visual appearance plays a subordinate role, but the function must be guaranteed without restriction. Here, our 2nd choice is the ideal solution for price-conscious customers. These are exhibition items, customer returns or discontinued models with minor signs of use, but which have been technically inspected by our service department. We also give a full 2-year guarantee on the 2nd choice.

nuReality App

nuReality - AR App

Bring the high end into your home in advance with our augmented reality app. Our 360° view or our AR mode provide the final details for your favourite speakers in your own four walls.

Google Play

Apple Store

Listen to it now in our stores!

Test results

We are awarded. And proud of it.

Editors Choice Award 2023/24

nuPro XS-4000 RC– beste Aktivlautsprecher

Streaming, HiFi, Heimkino und Studio

nuPro XS-4000 RC - multifunktionale Lautsprecher

Highlight und Heimkino-Tipp

Sehr gut: kabellosen Surround-Set rund um den nuXinema preAV

Klare Designsprache, mächtige Soundkulisse

nuPro XS-4000 RC - überragender Sound für diese Baugröße

High End-Audio kabellos

X-Connect Surround - hervorragende Klangqualität bei Musik und Heimkino

Ausgezeichnetes Heimkino-Universum

Universales Klanggenie: nuXinema preAV mit nuPro XS-6000 RC, XS-4000 RC und nuSub XW-1200

Es ist doch alles Gold, was klingt

nuPro XS-4000 RC klanglich und bedientechnisch ein großer Wurf

Trio Cinemale

nuPro XS-8500 RC mit XS-4000 RC - kabellos Surroundanlage verspricht immersives Klangerlebnis

Platz 1 „Studio und Bühnentechnik“

nuPro X-4000 RC beim SOUNDCHECK Leser Polls

Gehört mit zur "Elite der Studiomonitore dieser Klasse"

nuPro X-4000 RC: ausgezeichnetes Klangverhalten, attraktives PLV

nuPro X-3000 RC und X-4000 RC: "Machen beide süchtig"

nuPro X-3000 RC und X-4000 RC: "machen beide süchtig"

Sieger / Geräte des Jahres 2020

nuPro X-4000 RC: Sieger/Gerät des Jahres 2020

Glänzt mit höchster Linearität - absolut studiotauglich

nuPro X-4000 RC: absolut studiotauglich

Referenzmodell hinsichtlich der exzellenten Qualitäten

nuPro X-4000 RC: Klassen-Referenz

Aktiv-Lautsprecher des Jahres 2020/21 - 1. Platz ROAST Award 2020/21

nuPro X-4000 RC: ROAST-Award 2020/21

Red Dot Design Award Winner 2019: nuPro X-3/4/6/8000

nuPro X-3/4/6/8000: Red Dot Design Award 2019


We not only build exceptional loudspeakers and electronics, but also offer the matching accessories. So you can find everything useful for our products, from cables to adapters.

B-Tech BT-77
Swivel and tilt wall mount
€44.99 / Pair

HDMI/ARC Adapter
Connects TV with nuConnect ampX/XL, nuPro X/XS
€29.00 / Piece

in-akustik Premium MP3 Audio Cable
Premium jack to stereo cable
€24.99 / Piece

in-akustik Star D/A
€49.90 / Piece

in-akustik Stereo Audio Cable XLR
Premium XLR cable
€63.00 / Piece

nuCable Audio 9
High End Stereo RCA Cable
€40.00 / Piece

nuCable Digital Pro
High End Coaxial Cable
€23.00 / Piece

Content: 1,5 Meter (€15.33 / 1 Meter)

-20 %
nuConnect trX
Wireless Transceiver
€119.00 / Piece €149.00 (€30.00 saved)

Lowest price in the last 30 days before price reduction: €99.00 / unit
nuConnect trXS
Wireless Transceiver
€149.00 / Piece

Speaker stand BS-652
Speaker stand with glass base
€134.50 / Piece

-20 %
Speaker stand MS-67
Speaker stand with metal base
€59.50 / Piece €74.50 (€15.00 saved)

Lowest price in the last 30 days before price reduction: €50.00 / unit
Staywired Pro Flex
Organisational talent
€12.50 / Piece

Content: 0,5 Meter (€25.00 / 1 Meter)

Wall bracket WH-6
Swiveling wall mount
€36.00 / Piece

Wall bracket WH-N 1
Swivel and tilt wall mount
€129.00 / Piece

XRC Android Interface
Smartphone Measuring Microphone
€39.00 / Piece

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nuSub XW-1200
Statement subwoofer
€995.00 / Piece

nuSub XW-700
Tiny low end power
€495.00 / Piece

nuSub XW-800 slim
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