Give your music the space it deserves.

The convenience and connectivity of wireless. The emotion and detail of true high-resolution stereo. And all from a compact system designed to fit almost anywhere. LSX is the speaker system for the way we listen today.

Following the success of Kef LS50 wireless, lsx includes a 4" Unit-q driver to deliver astoundingly clear sound over 160 degrees of coverage and an few designed cabinet with hidden Heatsink. || Connect wirelessly via dual-band Wi-Fi connectivity, Bluetooth 4. 2, digital (To slink) input, or a 3. 5 mm aux optical connection. Connect the speakers wirelessly or via RJ45 Ethernet. || With great music services like Spotify and Tidal built in, all the music you love is at your fingertips. || If you're after additional bass, the LS50W can output to a connected subwoofer. Output to the connected subwoofer is controlled by the included app. || Choose from white, Black blue, olive or Red matte/cloth finishes.

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Drive units (per speaker)
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
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)
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
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