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KEF LSX II Wireless Speakers (Pair)

Enquiry/price check? Click here SKU: KEFLSXII
Ex VAT: £999.17

Award winning active speakers, with high res support 24-bit / 384kHz (PCM) DSD, full MQA rendering, Roon Ready and HDMI-ARC. We also sell the optional matching KC62 subwoofer

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Condition: Brand new in original retail packaging

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Product Video


Warranty length 5 Years
Brand KEF Speakers

Tech Specs

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


Frequency range (-6dB) measured at 85dB/1m
- 49Hz – 47kHz
*Depends on EQ settings


Frequency response (±3dB) measured at 85dB/1m
- 54Hz – 28kHz
*Depends on EQ settings


Amplifier output power (per speaker)
- LF: 70W
- HF: 30W


Amplifier class (per speaker)
- 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


Streaming services
- Spotify via Spotify Connect
- Tidal via Tidal Connect
- Amazon Music
- Qobuz
- Deezer
- QQ Music via QPlay
- Internet Radio
- Podcast
*Depends on services availability in different countries


Source 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


Dimensions (HWD per speaker)
- 240 × 155 × 180 mm (9.5 × 6.1 × 7.1 in.)


Weight (per set)
- 7.2kg (15.6lbs)


Power input
- 100 – 240VAC 50/60Hz


Power consumption
- 200W (operating power)
- <2.0W (standby power)


- Primary speaker
- TOSLINK Optical
- USB Type C
- Analog 3.5mm Auxiliary
- RJ45 Ethernet (network)
- RJ45 Ethernet (interspeaker)


Secondary speaker
- RJ45 Ethernet (interspeaker)


- RCA Subwoofer output


Wi-Fi network standard
- IEEE 802.11a/b/g/n/ac
- IPv4, IPv6


Wi-Fi network frequency band
- Dual-band 2.4 GHz / 5 GHz

Product Description

KEF LSX II Wireless speakers are the latest version of these excellent active loudspeakers, updated and improved. Available in a choice of fantastic colours - Carbon Black, Cobalt Blue, Lava Red, Mineral White, the Soundwave Edition and the latest finish Olive green.

With a combined power output of 200W and KEF's 11th gen Uni-Q drivers with a dedicated amp for tweeter and woofer, LSX II has been designed to deliver even better three-dimentional soundstaging.

A Triumph in Design

KEF has enlisted the talents of Michael Young to bring together a perfect symphony of sound and design with the LSX II, finished in a variety of colours to match every single taste and space. Each single speaker has been designed to truly harness the best that each driver can offer you to deliver a truly fantastic sound.

New Driver Array

The Uni-Q driver array has been improved on LSX II to a specially designed 11th generation that is fine tuned to deliver a crisp, clean and clear sound.

Ideal for a variety of uses, LSX II is just as impressive streaming music as they are for watching your favourite box set alongside your screen (they now include HDMI-ARC), or for desktop audio, the LSX II can truly cater to all uses.

Streaming Options

Thanks to the new W2 wireless platform fitted to LSX II, the streaming options are close to endless with full support for Apple AirPlay2, Chromecast and more via Bluetooth and Wi-Fi with more options still yet to come. This truly is future proof in the ever changing digital world of audio.

In addition to wired and streaming options (inc Amazon Music, Qobuz, Tidal, Deezer, Apple AirPlay 2, Google Chromecast) this updated version is Roon Ready and can support files up to 24-bit / 384kHz (PCM) DSD, with full MQA rendering.

Customer Reviews

  • Terry

    10 Feb 2024

    These speakers are worth every penny especially if you have Roon and a streaming account ( Qobuz ). Setup took only minutes and was flawless and cannot understand the negative reviews I have read regarding the app!. Oh and by the way they sound great.
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