KEF LSX II [Plug & Play]

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.

High-Fidelity sound
KEF is obsessed with bringing a superior listening experience whatever the size of the speaker. With built-in support of streaming up to 24bit/384kHz and dedicated amplifiers inside each speaker, LSX II offers the highest quality sound in its size and makes high-fidelity sound accessible to a wider range of listeners.

Stereo. Feel the performance.
With two speakers positioned apart from each other, the LSX II creates a three-dimensional soundstage of true stereo sound, bringing your favourite tunes to life for a listening experience that a one-box speaker cannot come close to.

Small speakers, big sound
LSX 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 the Uni-Q driver array, the MIE ensures a perfectly timed performance with clear, accurate and more balanced sound.

Sit anywhere, hear every detail
Uni-Q® technology is the building block of KEF signature sound. Designed to perform at its best in LSX II, the Uni-Q driver array acts as a single point source to enlarge the ‘sweet spot’ and disperses sound more evenly, allowing everyone sitting at different spots in the room to experience the same natural, detailed sound.

All the music in the world
The advanced W2 wireless platform of LSX II ensures that no matter how you like to listen to music, you can do so with the minimum of fuss and in pristine sound quality.

Perfect partner for… everything
Sound plays a big role in your home entertainment experience and LSX II elevates the total experience with high-fidelity sound. Fully loaded with wired and wireless connections, LSX II is perfect for music, gaming, TV, movies and even your personal working space.

Plug and play to TV, laptop and more
With LSX II, you can connect your TV with HDMI ARC, your laptop with USB-C, and even a turntable, CD 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.

Same music, same enjoyment for every room
When partnered with other sets of LS Wireless speaker systems including LSX II, LS50 Wireless II and LS60 Wireless, you can use AirPlay 2, Chromecast or Roon to fill your entire house with music. It’s perfect for parties where everyone in different rooms can enjoy the same playlist.

Seamless home integration
LSX II is more than a high-fidelity speaker system - it is designed to enhance your everyday life. Seamlessly integrate LSX II into your smart home to browse and play music, select sources, or use controls such as play, pause, and adjust the volume via your smart home app or control interface.

Instant control in your palm
The KEF Connect app walks you through simple setup and gives you complete control of what you play on the LSX II. It is intuitive to use with any source in your home, and it allows simple over-the-air firmware updates that bring you new and improved features with the minimum of fuss.

Personalised listening experience
Simple, subtle yet powerful EQ settings allow you to fine-tune LSX II to best suit your room or your personal taste. The only thing you might need is a tape measure.

Designed to fit into different spaces
LSX II delivers high-fidelity sound while it is compact enough to fit comfortably into any setting. It is also incredibly flexible with its dedicated accessories including S1 floor stands, P1 desk pads and B1 wall brackets, so you can place the speakers on a bookshelf or desktop, pair with the floor stand or even attach to the wall.

Technical Specification

• Drive units (per speaker)
  Uni-Q driver array:
  HF: 19mm (0.75in.) aluminium dome
  LF/MF: 115mm (4.5in.) magnesium/aluminium alloy cone
  
• Streaming services
  Spotify via Spotify Connect
  Tidal via Tidal Connect
  Amazon Music
  Qobuz
  Deezer
  QQ Music via QPlay
  Internet Radio
  Podcast
  
• Power input
  100 – 240VAC 50/60Hz
  
• Frequency range (-6dB) measured at 85dB/1m
  49Hz – 47kHz
  *Depends on EQ settings
  
• Power consumption
  200W (operating power)
  <2.0W (standby power)
  
• Frequency response (±3dB) measured at 85dB/1m
  54Hz – 28kHz
  *Depends on EQ settings
  
• 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
  
• Inputs
  Primary speaker
  HDMI ARC
  TOSLINK Optical
  USB Type C
  Analog 3.5mm Auxiliary RJ45 Ethernet (network) RJ45 Ethernet (interspeaker)
  
• Secondary speaker
  RJ45 Ethernet (interspeaker)
  
• Amplifier output power (per speaker)
  LF: 70W
  HF: 30W
  
• Interspeaker connection
  Wireless: all sources resampled to 48kHz/24bit PCM
  Wired: all sources resampled to 96kHz/24bit PCM
  
• Output
  RCA Subwoofer output
  
• Amplifier class (per speaker)
  LF: Class D
  HF: Class D
  
• Max SPL measured at 1m
  102 dB
  
• Supported format (network)
  MQA^, DSD, FLAC, WAV, AIFF, ALAC, AAC, WMA, MP3, M4A, LPCM and Ogg Vorbis
  
• 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
  
• Wireless streaming features
  AirPlay 2
  Google Chromecast
  Roon Ready
  UPnP Compatible
  Bluetooth 4.2
  
• Home Automation System
  Elan, RTi, Crestron Home, Savant, Control4
  
• Dimensions (HWD per speaker)
  240 × 155 × 180 mm (9.5 × 6.1 × 7.1 in.)
  
• Weight (per set)
  7.2kg (15.6lbs)
  

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