Product details

DESCRIPTION

The Definitive Compact Wireless HiFi System

The KEF LSX II is a compact wireless HiFi speaker system engineered to deliver rich, high‑fidelity sound that feels true enough to touch. Powered by KEF’s signature Uni‑Q® driver array and the advanced Music Integrity Engine®, LSX II creates an immersive, perfectly balanced soundstage that fills any room with clarity and depth.

With seamless streaming via AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect, and full multi‑room support, LSX II integrates effortlessly into modern lifestyles. HDMI ARC, USB‑C, and optical inputs make it the ideal companion for TVs, laptops, and desktop setups.


SPECIFICATION

Model:
LSX II

Drive Units (per speaker):
Uni‑Q Driver Array:
• HF: 19 mm (0.75 in.) aluminium dome
• LF/MF: 115 mm (4.5 in.) magnesium/aluminium alloy cone

Frequency Response (±3 dB, 85 dB/1 m):
54 Hz – 28 kHz
Depends on EQ settings

Frequency Range (‑6 dB, 85 dB/1 m):
49 Hz – 47 kHz
Depends on EQ settings

Maximum SPL (1 m):
102 dB

Amplifier Output (per speaker):
• LF: 70 W
• HF: 30 W

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

Primary Speaker Inputs:
• HDMI ARC
• TOSLINK Optical
• USB Type‑C
• Analog 3.5 mm Auxiliary
• RJ45 Ethernet (network)
• RJ45 Ethernet (interspeaker)

Secondary Speaker Inputs:
• RJ45 Ethernet (interspeaker)

Outputs:
• RCA Subwoofer output

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

Source Resolution:
• Network: up to 384 kHz / 24‑bit
• Optical: up to 96 kHz / 24‑bit
• USB‑C: up to 192 kHz / 24‑bit
• HDMI ARC: up to 1.411 Mbps PCM
Depends on source resolution

Supported Formats:
MQA^, DSD, FLAC, WAV, AIFF, ALAC, AAC, WMA, MP3, M4A, LPCM, Ogg Vorbis

Wireless Streaming Features:
• AirPlay 2
• Google Cast
• Roon Ready
• UPnP Compatible
• Bluetooth 5.0
• Plays with Audirvāna

Supported Streaming Services:
• Spotify (Spotify Connect)
• TIDAL (TIDAL Connect)
• Amazon Music
• Qobuz
• Deezer
• QQ Music (via QPlay)
• Internet Radio
• Podcasts
Service availability varies by region

Wi‑Fi Network Standard:
IEEE 802.11a/b/g/n/ac (IPv4, IPv6)

Wi‑Fi Frequency Bands:
Dual‑band 2.4 GHz / 5 GHz

Home Automation Compatibility:
Elan, RTi, Crestron Home, Savant, Control4

Power Input:
100 – 240 V AC, 50/60 Hz

Power Consumption:
• 200 W (operating)
• <2.0 W (standby)

Dimensions (H × W × D):
240 × 155 × 180 mm
(9.5 × 6.1 × 7.1 in.)

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

Remarks:
Measurement per set

Design. Sound. Smart Living