KEF LSX II
The Definitive Compact Wireless HiFi
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 5.0
Plays with Audirvāna
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