LSX II

11th Generation 4.5-inch Uni-Q^®

Supports all major streaming services

HDMI Arc

Multiroom via Airplay 2 & Google Cast

Bluetooth^® 5.0

USB Type-C input

Wall mounting possible

Subwoofer output

Engineered for your ears. Crafted for your eyes.

The LSX II delivers High-Fidelity sound so rich it feels true enough to touch. Powered by cutting-edge audio technologies, including our KEF signature Uni-Q^® driver array and Music Integrity Engine, it creates a soundscape that is both immersive and perfectly balanced.

Encased in a signature fabric-wrapped cabinet designed by Michael Young, the LSX II speaker allows you to stream your favourite music via AirPlay 2, Google Cast, Spotify, and Tidal, offering multiroom convenience and seamless connectivity to your laptop, TV, and many other devices.

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.

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.

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.

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.

Connectivity

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.

Plug and Play

LSX II supports HDMI ARC and USB-C inputs, making it the perfect companion for TV, laptop and more.

Design by Michael Young

The aesthetic design of LSX II comes courtesy of Michael Young, one of the leading lights in the industrial design world. Famed for his sophisticated take on minimalism, Young’s smart, pared down aesthetic perfectly striking the ideal balance between form and function on the LSX II.

Learn More

Soundwave by Terence Conran

The Soundwave by Terence Conran Edition unites two of Britain’s most celebrated names in a single, unique design. The Uni-Q drivers and rear port are finished in Conran’s signature blue, while a ‘soundwave’ pattern is woven into the unique Kvadrat fabric for a true statement of the meeting of acoustics and design.

Specifications

Model

LSX II

Frequency Response

(±3dB) measured at 85dB/1m
49Hz - 47kHz
*Depends on EQ settings

Frequency Range

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

Maximum SPL Measured at 1m

102 dB

Drive Units

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

Amplifier Type

LF: Class D
HF: Class D
(per speaker)

Inputs

HDMI ARC
TOSLINK Optical
USB Type C
Analog 3.5mm Auxiliary
RJ45 Ethernet (network)
RJ45 Ethernet (interspeaker)

Secondary:
RJ45 Ethernet (interspeaker)

Outputs

RCA Subwoofer output

Interspeaker Connection

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

Supported 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

Supported Formats

MQA^, DSD, FLAC, WAV, AIFF, ALAC, AAC, WMA, MP3,
M4A, LPCM and Ogg Vorbis

Wireless Streaming Features

AirPlay 2
Google Cast
Roon Ready
UPnP Compatible
Bluetooth 5.0
Plays with Audirvāna

Wi-Fi Standard

IEEE 802.11a/b/g/n/ac
IPv4, IPv6

Wi-Fi Frequency Band

Dual-band 2.4 GHz / 5 GHz

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

Power Input

100 – 240VAC 50/60Hz

Power Consumption

200W (operating power)
<2.0W (standby power)

Dimension (H x W x D)

240 mm x 155 mm x 180 mm (9.5 in. x 6.1 in. x 7.1 in.)

Weight

7.2kg (15.6lbs)

Home Automation System

Elan, RTi, Crestron Home, Savant, Control4

Remarks

(per set)

Videos

Unboxing by yourself

IOS Set up

Android Set up

Simple Home Cinema Setup with TV

AirPlay 2 Streaming

Google Cast Streaming

Spotify Connect

Tidal Connect

Listen to Internet Radio

EQ Settings (Normal mode)

Awards

WHAT HI-FI? AWARDS 2023
BEST SPEAKER SYSTEM £750 - £1500

"A great value speaker system that's perfect for smaller rooms." - What Hi-Fi?, Oct 2023

WHAT HI-FI? AWARDS 2022
'BEST ALL-IN-ONE SYSTEM £1,000-1,500'

"KEF’s taken what was already a fantastic desktop speaker system and amplified its appeal across the board – you couldn’t really ask for more at this level." - What Hi-Fi?, Oct 2022

STEREONET PRODUCT OF THE YEAR AWARDS 2022
- STANDMOUNT SPEAKER (ACTIVE)

“KEF has carved out a strong niche for itself in the past few years with its wireless active designs. It’s easy to see why, as they tick so many boxes and offer easily accessible, high-performance speakers in neat, versatile packaging. LSX II epitomises this, with excellent wireless connectivity, a versatile range of functions, crisp, modern styling and class-leading sound. As with its predecessor, LSX II is the one its rivals want to beat.” - StereoNET, December 2022

DARKO.AUDIO

“The streaming inputs and the amplifiers are built in - everything is there. So when you get them in a box, you pour them out, plug them in, and you're up and running in five minutes.” - Nov 2022

THE ABSOLUTE SOUND

“...I found myself listening to music for the fun of it, and that’s really the biggest takeaway from this entire review. I was delighted by their sound, their ease-of-use, and all the important improvements KEF worked into the LSX IIs. If anyone’s looking for a pair of wireless speakers that can do just about anything at a genuinely reasonable price, these should be at the top of the list.” - Mar 2023

Downloads

Information Sheet

Specifications

Information Sheet (without AudirvÄna)

GPSR (General Product Safety Regulation)

Product Manual

Home Automation System

Quick Start Guide

IR Codes for Universal Remote Control

EU Declaration

USB Audio Driver

What’s In The Box