LSX II

KEF

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KEF LSX II

Wireless Streaming Loudspeaker $1400 per pair

Texas Residents: We will pay your sales tax

Reviews

User Manual (PDF)

The KEF LSX II wireless streaming loudspeaker now features the W2 wireless platform used in the LS50 and LS60 loudspeakers. They've also added HDMI and USB-C connections, making them ideal for TV and desktop audio systems. The LSX II also features some of the brand’s pioneering technology like KEF’s 11th generation Uni-Q driver array to disperse sound around the room evenly. The advanced Music Integrity Engine delivers a perfectly timed performance for better clarity and a tighter, more accurate sound.  

kef lsxii

High-Fidelity Sound

The beauty of the two-speaker box approach is that music is given space to breathe and develop, creating a three-dimensional soundstage. The speakers appear to disappear, leaving you to enjoy the immersive performance that unfolds in front of you, drawing you into the experience. Each LSX II speaker uses a version of KEF 11th generation Uni-Q driver array specially designed for this loudspeaker. This signature technology acts as a point source, where the tweeter is placed at the precise acoustic center of the woofer, recreating how sound is produced naturally. This design eliminates the traditional, tiny 'sweet spot,' instead delivering accurate, pristine sound to all listeners.


The LSX II has a combined 200 Watts of system power. Both the tweeter and woofer are powered by their own dedicated amplifier to deliver room-filling sound in such compact cabinets. Performance is further enhanced from the award-winning original by the Music Integrity Engine. The cutting- edge collection of bespoke Digital Signal Processing algorithms has just got an update. Optimized for the Uni-Q driver, the Music Integrity Engine enables LSX II to deliver a perfectly timed performance, for better clarity and a tighter, more accurate sound.

User Friendly Setup Via KEF Connect

The KEF Connect app walks you through the set-up and controls the system and playback navigation, with intuitive sound settings so you can adjust LSX II to best suit your room. With its powerful Room EQ DSP, LSX II can be fine-tuned to your room and personal taste without the need for a degree in acoustic engineering. 'Normal' mode is designed to talk you through the process with easy questions - all you might need is a tape measure. For easy integration of a KEF subwoofer with LSX II, Room EQ includes subwoofer pre-sets for the best possible system performance. LSX II also comes with a host of other user-friendly features including volume settings, sensitivity adjustments, and the ability to select a source to wake it up when it comes on. You can choose to connect the speakers wirelessly with 24bit/48kHz resolution for a cable-free
setup, or with the supplied cable for 24bit/96kHz resolution.

Features

  • Plays all major music services and supports all
  • major audio formats
  • DSD, MQA and PCM up to 24bit/384kHz
  • Comprehensive connectivity for your TV, laptop
  • and any other equipment: USB-C, HDMI ARC,
  • Analogue input, subwoofer output
  • 11th Generation Uni-Q driver array for accurate,
  • pristine sound
  • Music Integrity Engine for rich, full-bodied sound
  • System power: LF 70W class D, HF 30W class D,
  • Max. SPL:102dB
  • Intuitive on-boarding with user-centred features
  • Personalised listening experience via KEF Connect
  • App
  • Design by Michael Young
  • Optimised cabinet design for best acoustic performance
  • Mounting inserts to secure on P1 desk pad, S1 floor stand and B1 wall bracket
  • Available in 5 finishes: Carbon Black, Mineral White, Cobalt Blue, Lava Red

 

 

kef lsxii soundwave edtion

(Above) KEF LSX II Soundwave Edition

 

lsxnII on standsLSX II Specifications

Drive units

  • 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 102 dB

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 96kHz/24bit
  • HDMI up to 48kHz/16bit (*Depends on source resolution)

Interspeaker connection

  • Wireless: all sources resampled to 48kHz/24bit PCM
  • Wired: all sources resampled to 96kHz/24bit PCM

Supported formats (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)

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)

Output

  • RCA Subwoofer Output (Primary speaker)

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