LSX

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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.


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.


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

KNOCKOUT PUNCH AWARD - DAR

"A neat, compact and entertaining all-in-one system of rare sonic quality.’ What Hi-Fi?” — 2018

WHAT HI-FI? SOUND AND VISION


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.

 


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

KNOCKOUT PUNCH AWARD - DAR

"A neat, compact and entertaining all-in-one system of rare sonic quality.’ What Hi-Fi?” — 2018

WHAT HI-FI? SOUND AND VISION


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 4.5" 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

Support up to 192kHz/24bit
Depending on source resolution

 

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

 

INPUTS

2.4GHz/5GHz Dual-band Wi-Fi network
Bluetooth 4.0 with aptX® codec
USB Type B
TOSLINK Optical
RCA Analog Line Level Input
10/100 Mbps RJ45 Ethernet (For network and service)

 

MASTER SPEAKER

SLAVE SPEAKER

 

DOWNLOADS

Product Information Sheet

 

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

AWARDS & REVIEWS

WHAT HI-FI? SOUND AND VISION

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

 

KNOCKOUT PUNCH AWARD - DAR

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

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

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