Welcome to a world of High-Fidelity sound that is true enough to touch. This all-in-one speaker system in its second generation: upgraded to deliver a more balanced sound in higher resolution with all-inclusive connectivity. Simply stream anything including AirPlay 2, Chromecast, Spotify and Tidal, or seamlessly connect the LSX II to your laptop, TV and many other devices.

SKU: N/A Categories: , , , ,
Additional Information

Olive Green, Cobalt Blue, Carbon Black, Mineral White, Lava Red, Soundwave by Terrace Conran

Seamless Home Integration

LSX II is more than a high fidelity speaker system. It is designes to enhance your everyday life. Seamlessly integrate LSX II into your smart home and play music, select sources, or use controls such as play, pause, and adjust the volume vis your smart app or control interface.

Sit anywhere, hear every detail

Unii-Q technology is the building block of KEF’s signature sound. Designes to perform at its best in LSX II, the unique Uni-Q driver acts as a single point source to enlarge teh ‘sweet spot’ and disperses sound more evenly, allowing everyone at different spots in the room to experience the same natural, detailed sound.

Small speakers, big sound

KSX II is upgraded from the first generation to deliver a more balanced sound in higher resolution. It is precisely tuned with enhancement on the bespoke Digital Signal Processing algorithms in the Music Integrity Engine (MIE), Optimised for teh Uni-Q driver array, the MIE ensures a perfectly timed performance with clear, accurate and more balanced sound.

Plug and play to TV, laptop and more

With LSX II, you can connect your TV with HDI ARC, your laptop with USB-C, and even a turntable, D player or games console. If you demand your movies and music come with extra bass,, there’s a dedicated output to connect a KEF subwoofer.

In-store Demonstration

If you’re going to invest in a set of quality loudspeakers like the KEF LSX II it’s only natural that you should want to hear them being put through their paces first. Call Acoustica today to arrange a full demonstration in-store. We have a custom-built demo room, carefully appointed to give you the full aural experience you can expect from the KEF LSX II.

At-home Installation

Here at Acoustica, our commitment to you doesn’t end at the point of sale. We want you to get the most out of your KEF LSX II speakers, and we know how to achieve that. With decades of experience in the industry between us, we have the skill and expertise to set up your sound system to meet the acoustic requirements of your room. However large or small, and whatever shape it might be, our technicians will install your new speakers for optimal performance.

Technical Specification


Drive Units Uni-Q driver array:
HF: 19mm (0.75in.) aluminium dome
LF/MF: 115mm (4.5in.) magnesium/aluminium alloy cone
Frequency Range 49Hz – 47kHz
*Depends on EQ settings
Frequency Response 54Hz – 28kHz
*Depends on EQ settings
Amplifier Output Power (Per Speaker) LF: 70W
HF: 30W
Amplifier Class LF: Class D
HF: Class D
Max SPL Measured at 1m 102 dB
Wireless Streaming Features AirPlay 2
Google Chromecast
ROON Ready
UPnP Compatible
Bluetooth 4.2
Input Resolution Network up to 384kHz/24bit
Optical up to 96kHz/24bit
USB Type C up to 192kHz/24bit
HDMI up to 1.411Mbps PCM
*Depends on source resolution
Interspeaker Connection Wireless:  all sources resampled to 48kHz/24bit PCM
Wired:  all sources resampled to 96kHz/24bit PCM
Supported Format (Network) MQA^, DSD, FLAC, WAV, AIFF, ALAC, AAC, WMA, MP3, M4A, LPCM and Ogg Vorbis
Home Automation System Elan, RTi, Crestron Home, Savant, Control4
Supported Format (Network) MQA, DSD
Dimensions (HxWxD) MQA^, DSD, FLAC, WAV, AIFF, ALAC, AAC, WMA, MP3, M4A, LPCM and Ogg Vorbis
Weight 7.2kg (15.6lbs)
Power Input 100 – 240VAC 50/60Hz
Power Consumption 2000W (operating power)
<2.0W (standby power)
Streaming Services Spotify via Spotify Connect
Tidal via Tidal Connect
Amazon Music
QQ Music via QPlay (coming soon)
Internet Radio

*Depends on services availability in different countries
Primary Speaker Inputs HDMI ARC
USB Type C
Analog 3.5mm Auxiliary
RJ45 Ethernet (network)
​​​​​​​RJ45 Ethernet (interspeaker)
Secondary Speaker Inputs RJ45 Ethernet (interspeaker)
Output RCA Subwoofer output
Wi-Fi Network Frequency Band Dual-band 2.4 GHz / 5 GHz
Wi-Fi Network Standard IEEE 802.11a/b/g/n/ac
IPv4, IPv6
Finishes Olive Green / Cobalt Blue /Carbon Black /Mineral White / Lava Red / Soundwaves by Terrace Conran


Get in Touch

If you have any questions about the KEF LSX II the team at Acoustica is happy to help. To arrange a demonstration, place an order, or for impartial, professional advice, call us on 01244 344 227 during our regular opening hours (Tuesday to Saturday, 10:00 to 17:30). Alternatively, drop us an email to and someone from the team will call you back.


There are no reviews yet.

Be the first to review “KEF LSX II”

Your email address will not be published. Required fields are marked *