LSX

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  • Regular price €1.200,00
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Give your music the space it deserves.

The convenience and connectivity of wireless. The emotion and detail of true high-resolution stereo. And all from a compact system designed to fit almost anywhere. LSX is the speaker system for the way we listen today.

Free two year warranty / Free returns / Free delivery


Play anything. Hear everything.

From streaming to gaming, from TV to multi-room music, LSX is designed for all your home entertainment needs. Play what you like, how you like, where you like – and experience it all in glorious high-resolution stereo.

Play anything.
Hear everything.

From streaming to gaming, from TV to multi-room music, LSX is designed for all your home entertainment needs. Play what you like, how you like, where you like – and experience it all in glorious high-resolution stereo.

Stereo.
Feel the performance.

With two speakers positioned apart from each other, you’ll experience music as a 3D soundstage, with the pin-point imaging and sense of presence that one-box systems miss. It’s the difference between just hearing music, and really feeling it.

Apple AirPlay 2*

LSX comes with Apple AirPlay 2 which, from a simple screen tap or request to Siri, unlocks the world of multi-room audio. You can wirelessly stream all your favourite music apps to your whole home with seamless control from your iPhone, iPad, and Mac.(*available in early 2019)

Stereo.
Feel the performance.

With two speakers positioned apart from each other, you’ll experience music as a 3D soundstage, with the pin-point imaging and sense of presence that one-box systems miss. It’s the difference between just hearing music, and really feeling it.

Apple AirPlay 2*

LSX comes with Apple AirPlay 2 which, from a simple screen tap or request to Siri, unlocks the world of multi-room audio. You can wirelessly stream all your favourite music apps to your whole home with seamless control from your iPhone, iPad, and Mac.(*available in early 2019)

All the music
on earth.

With Spotify Connect and Tidal built in, all the music you love is at your fingertips. Stream from the cloud, or directly from a NAS drive or a computer through DLNA fully wirelessly at 48kHz/24bit resolution (or 96kHz/24bit using optional wired connection). Or simply use Bluetooth.

Easy listening.

With LSX, nothing gets between you and the music. Connecting to Wi-Fi takes moments with the KEF Control app and keeps abreast of the latest firmware, so your speakers are future-proofed and always up to date.

All the music
on earth.

With Spotify Connect and Tidal built in, all the music you love is at your fingertips. Stream from the cloud, or directly from a NAS drive or a computer through DLNA fully wirelessly at 48kHz/24bit resolution (or 96kHz/24bit using optional wired connection). Or simply use Bluetooth.

Easy listening.

With LSX, nothing gets between you and the music. Connecting to Wi-Fi takes moments with the KEF Control app and keeps abreast of the latest firmware, so your speakers are future-proofed and always up to date.

Sound

LSX utilises KEF’s advanced acoustic design technology, features that are usually reserved for much larger hi-fi speakers. Get ready for goosebump-inducing levels of sonic realism and accuracy.

Uni-Q.
The sweet spot just
got a lot wider.

LSX comes with KEF’s breakthrough Uni-Q driver array. By placing the tweeter at the centre of the midrange and bass cone, it radically improves stereo imaging. This not only makes music sound clear, detailed and lifelike, it does so across a wider listening area.

Uni-Q.
The sweet spot just
got a lot wider.

LSX comes with KEF’s breakthrough Uni-Q driver array. By placing the tweeter at the centre of the midrange and bass cone, it radically improves stereo imaging. This not only makes music sound clear, detailed and lifelike, it does so across a wider listening area.

Uni-Q.
The sweet spot just
got a lot wider.

LSX comes with KEF’s breakthrough Uni-Q driver array. By placing the tweeter at the centre of the midrange and bass cone, it radically improves stereo imaging. This not only makes music sound clear, detailed and lifelike, it does so across a wider listening area.

Contoured baffle.
Hear the music,
not the speaker.

Optimised using Finite Element Analysis, LSX’s contoured baffle improves sound dispersion, ensuring that sound waves travel outwards and are not reflected around the cabinet surface. The result? A purer sound, with less cabinet colouration.

DSP.
Small speakers,
big sound.

LSX uses KEF’s Music Integrity Engine – bespoke Digital Signal Processing that helps the speakers deliver transparent bass with great extension, while reducing distortion. So you can fill your room with rich, full-bodied sound.

Contoured baffle.
Hear the music,
not the speaker.

Optimised using Finite Element Analysis, LSX’s contoured baffle improves sound dispersion, ensuring that sound waves travel outwards and are not reflected around the cabinet surface. The result? A purer sound, with less cabinet colouration.

DSP.
Small speakers,
big sound.

LSX uses KEF’s Music Integrity Engine – bespoke Digital Signal Processing that helps the speakers deliver transparent bass with great extension, while reducing distortion. So you can fill your room with rich, full-bodied sound.

design

Compact, elegant and incredibly versatile, LSX looks great and fits comfortably into any setting. And with our intuitive apps, you’ll be up and running in next to no time.

No cables. No compromise.

With no need for a cable to connect the two speakers, and no separate amps or other equipment to worry about, you can position them wherever you like. Wave goodbye to visual clutter, without sacrificing sound quality.

No cables.
No compromise.

With no need for a cable to connect the two speakers, and no separate amps or other equipment to worry about, you can position them wherever you like. Wave goodbye to visual clutter, without sacrificing sound quality.

Design by
Michael Young.

Overseen by renowned product designer Michael Young, LSX’s design achieves a fine balance of form and function. Carefully considered details include port accent colours and a colour changing LED to subtly indicate which source is selected.

Design by
Michael Young.

Overseen by renowned product designer Michael Young, LSX’s design achieves a fine balance of form and function. Carefully considered details include port accent colours and a colour changing LED to subtly indicate which source is selected.

Colours and fabrics.

Whatever your style, there’s an LSX to match. The system comes with a choice of five colours, and is clad in an industrial fabric by Danish contemporary textile designer, Kvadrat. These fine details make the LSX pleasing to the touch, as well as appealing to the eye.

Design by
Michael Young.

Overseen by renowned product designer Michael Young, LSX’s design achieves a fine balance of form and function. Carefully considered details include port accent colours and a colour changing LED to subtly indicate which source is selected.

Design by
Michael Young.

Overseen by renowned product designer Michael Young, LSX’s design achieves a fine balance of form and function. Carefully considered details include port accent colours and a colour changing LED to subtly indicate which source is selected.

Colours and fabrics.

Whatever your style, there’s an LSX to match. The system comes with a choice of five colours, and is clad in an industrial fabric by Danish contemporary textile designer, Kvadrat. These fine details make the LSX pleasing to the touch, as well as appealing to the eye.

What's in the box

SPECIFICATIONS

The Details

Full Feature

AUDIO

Two-way 2.0 audiophile active digital speaker with 4" Uni-Q driver.

Acoustically optimised cabinet with constrained layer damping.

KEF's unique Music Integrity Engine™ time and phase correcting DSP algorithm

Four amplifier active system (2 x 30W + 2 x 70W Class D)

Customisable EQ settings (via KEF Control app)

CONNECTIVITY

Apple AirPlay 2 (Early 2019)

Spotify Connect (November 2018)

TIDAL

Bluetooth® 4.2 with Qualcomm aptX™

Digital input (TOSLINK)

3.5mm auxiliary input

DLNA Compliant

Roon tested

Subwoofer output

Dedicated apps for iOS and Android

 

Specifications

DIMENSION (H X W X D)

240 x 155 x 180 mm (9.5 x 6.1 x 7.1in.)
 

WEIGHT

3.6kg (7.9lbs)
3.5kg (7.7lbs))

 

WI-FI NETWORK STANDARD & FREQUENCY BAND

Dual-band 2.4GHz/5GHz
IEEE 802.11a/b/g/n

 

DRIVER UNITS

Uni-Q driver array:
HF: 19mm (0.75in.) aluminium dome
LF/MF: 115mm (4.5in.) magnesium/aluminium alloy cone

 

INPUTS

2.4GHz/5GHz Dual-band Wi-Fi network
Bluetooth 4.2 with aptX® codec
TOSLINK Optical
3.5mm Auxiliary Input
RJ45 Ethernet (For network)

 

OUTPUT

Subwoofer Output
5V2A DC Output

AMPLIFIER OUTPUT POWER

LF: 70W     HF: 30W

 

BLUETOOTH RANGE & MEMORY

10m
8 devices

 

BLUETOOTH FREQUENCY

2.402GHz - 2.48GHz

 

BLUETOOTH POWER

2.5mW (Bluetooth Class 2 Device)

 

RESOLUTION

Input:
Supports up to 192kHz/24bit

Output:
Wireless mode: 48kHz/24bit
Cable mode: 96kHz/24bit

 

MASTER AND SLAVE SPEAKER
CONNECTION

Wireless: Propriety 2.4GHz
Wired: RJ45 Ethernet
Depending on connection settings

MAXIMUM OUTPUT(SPL)

102dB
 

POWER INPUT

100 – 240VAC 50/60Hz

 

WIRELESS CONNECTIVITY

TIDAL

 

FREQUENCY RANGE

Frequency Range (-6dB)
Measured at 85dB/1m
49Hz - 47kHz (More bass extension)
52Hz - 47kHz (Standard)
55Hz - 47kHz (Less bass extension)
Depending on speaker settings

 

FREQUENCY RESPONSE

Frequency Response (±3dB)
Measured at 85dB/1m
54Hz - 28kHz (More bass extension)
59Hz - 28kHz (Standard)
69Hz - 28kHz (Less bass extension)
Depending on speaker settings

 

THIRD PARTY SUPPORT

Mounting inserts for supporting wall mount
Supports 3rd party remote programme
Supports IP Control

MASTER SPEAKER

SLAVE SPEAKER

 

DOWNLOADS

Product Information Sheet
LS Series Brochure
Quick Start Guide

KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE.

Awards & Reviews

TOP-PRODUKT 11/2018 - HI-FI JOURNAL.DE

"After the LS50 Wireless we expected a lot in terms of sound and were not disappointed. KEF was able to repeat the WOW effect! The small active LSX have incredible sound presence, which is completely contrary to their physical appearance." — 2018
Full review

LITE-MAGAZIN.DE

"The brand new LSX is an optically successful and modern styled HiFi package. You really don't need more than these active loudspeakers to hear really good music." — 2018
Full review

5 STAR REVIEW – WHAT HI-FI? SOUND AND VISION

"Take heed, rival systems, these miniature marvels are going to take some beating.” — 2018
Full review

DIAPASON D'OR

"Outstanding… The stereo image is perfect" — 2018

LOWBEATS.DE

“The KEF LSX belongs to the best of what the market has to offer at present in the matter of All-in-One-Speakers. In short: an excellent small, lifestyle streaming loudspeaker with real HiFi qualities." — 2018
Full review

AreaDVD.de

“Bottom line, KEF once again achieves a first-class test result. The new compact LSX wireless active loudspeakers shine with high-quality workmanship, noble optics, extensive application possibilities and outstanding sound.” — 2018
Full review

STUFF.TV

"It’s about as impressive an all-round system as we’ve heard for the money." - 2018
Full review

KNOCKOUT PUNCH AWARD - DARKO.AUDIO

"Rarely has a DAR-KO Award been so easy to give" — 2018
Full review

GearPatrol.com

"It’s the most versatile, compact speaker system that I’ve come across. You can connect it to your TV or turntable, or stream straight from the Spotify (and soon-to-be Apple Music) app. It’s also so, so easy to use.” — 2018
Full review

FAQ

I don’t have a home network and/or a smartphone for set-up. It is possible to use LSX without a Wi-Fi network?

It is highly recommended to connect LSX to a home network with a live internet connection, as most of the important features (TIDAL, Spotify Connect) and the KEF Control/Stream apps rely on these.

In addition, without an internet connection you will miss out on important updates (bug fixes and new features).

It is possible to disable the network functionality of LSX during speaker set-up by holding the source button for 5 seconds on the remote control. Flashing LED will turn from orange/white to orange/blue. After this, only Bluetooth, Optical and Aux will be selectable as sources using the remote control. A factory reset will be required to enable network functionality.

The KEF Control app cannot find my LSX during onboarding, what should I do?

 

  1. Perform a factory reset. With a paperclip/pin hold the reset button (marked with a triangle) on the back of the Master speaker for ~5 seconds until the back LED flashes orange

  2. Wait until the back LED on the Master speaker stops flashing

  3. Close down the app completely

  4. Unplug the power cable from the Master speaker

  5. Wait ~60 seconds

  6. Reinsert the power cable

  7. The LED of the Master speaker should be alternating orange/white, indicating setup mode. It may take up to 1 minute for LSX to become discoverable

  8. Run the KEF Control app, choose ‘Setup New Speaker’ and follow the instructions
     

If the problem persists please check the following:

  • The LSX broadcasts on 2.4G at channel 1. If your router is also broadcasting on 2.4G at channel 1, you may not be able to see your LSX. Try to change your router to another channel (please see your router manual for details).

  • Disable any VPN apps on your phone, as they may interfere with Wi-Fi detection.
     

If the problem persists, please send a log with a description of the problem from inside KEF Control app: Settings > Send Logs & Feedback or contact support.uk@kef.com

The LED on the Slave speaker is not working. Is there something wrong?

In normal operation the LED on the Slave speaker will not light up. The LED on the Slave speaker will only light up when there is a problem.

I am unable to see my LSX on the network. Why?

Make sure the speaker is powered on and already onboarded onto your network. The LED on the Master speaker should be solid orange.

  1. In the KEF Control app: Navigate to "Add new speaker" > "Connect to existing" > "Search again“. Make sure your smartphone is connected to the same network as LSX
  2. Select your speaker and press "Connect"
  3. If the speaker does not show up in your network:
  • Pull the power cables from both the Master and Slave speaker
  • Wait ~60 seconds
  • Reinsert the power cables in both the Master and Slave speaker
  • Open the KEF Control app and select your speaker from the speaker drop down menu
     

If it is pulsing orange, check that your router is powered on. If you have moved the LSX to another location or changed your router, perform a factory reset and onboard the LSX to the new router/network.

If the problem persists, please send a log with a description of the problem from inside KEF Control app: Settings > Send Logs & Feedback or contact support@kef.com

When do I need to connect the Master and Slave speakers together with the inter-speaker cable?

1. For the best stereo experience/soundstage, place the speakers between 1m to 3m apart.

2. Maximum distances between the Master and Slave speaker:

  • Wireless mode: Up to 5 meters, although interference from Wi-Fi and Bluetooth can reduce this distance
  • Cable mode: Up to 8 meters using a shielded Cat-6 Ethernet cable
     

3. When you are experiencing audio dropouts due to interference

How far should I separate the Master and Slave speakers?

For the best stereo experience/soundstage, place the speakers between 1m to 3m apart.

Maximum distances between the Master and Slave speaker:

  • Wireless mode: Up to 5 meters, although interference from Wi-Fi and Bluetooth can reduce this distance
  • Cable mode: Up to 8 meters using a shielded Cat-6 Ethernet cable

 

Can I use LSX with my TV?

Yes, LSX contains a very high-quality optical input which will work with the vast majority of televisions via a standard optical TOSLINK cable. Ensure that your television is set to output digital audio in PCM format (please see your television manual for details).

How do I clean the fabric areas of LSX?

Normal cleaning
Regular cleaning is important in order to keep the fabric looking its best and to prolong its life. Vacuum frequently, ideally every week. May also be vacuum cleaned with a soft brush.

Stain removal
Scrape off any liquids or hardened residues. Any loose particles must be vacuum cleaned before further cleaning.
Soak up liquid spills with an absorbent napkin or cloth.
Remove non-greasy stains by carefully dabbing with a lint-free cloth or sponge wrung out in warm water. Edge marks can be avoided by dabbing gently in circular motions towards the centre of the stain with a clean lint-free cloth. Remove greasy stains by using appropriate detergents or solvents. In all cases we recommend to test stain removal agents on an inconspicuous area first. Follow all manufacturer instructions.

Warnings

  1. Do not scrub the material as this could result in loss of colour or damage the fabric.
  2. Do not use detergents or cleaning agents intended for hard surfaces.

 

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