KEF LS50 Wireless II
The Ultimate Wireless HiFi Speakers
Model
LS50 Wireless II
Drive Units
Uni-Q Driver Array:
LF: 130 mm (5.25 in.) aluminium cone
HF: 25 mm (1 in.) vented aluminium dome with Metamaterial Absorption Technolog
Frequency Range (-6dB) Measured at 85dB/1m
40 Hz – 47 kHz
*Depends on EQ settings
Frequency Response (±3dB) Measured at 85dB/1m
45 Hz – 28 kHz
*Depends on EQ settings
Amplifier Output Power (Per Speaker)
LF: 280W
HF: 100W
Amplifier Class
LF: Class D
HF: Class AB
Max SPL Measured at 1m
108 dB
Wireless Streaming Features
AirPlay 2
Google Chromecast
ROON Ready
UPnP Compatible
Bluetooth 5.0
Plays with Audirvāna
Source Resolution
Network up to 384kHz/24bit Optical up to 96kHz/24bit
Coaxial up to 192kHz/24bit
HDMI up to 192kHz/24bit
*Depends on source resolution
Interspeaker Connection
Wireless: all sources resampled to 96kHz/24bit PCM
Wired: all sources resampled to 192kHz/24bit PCM
Supported Format (All Inputs)
MP3, M4A, AAC, FLAC, WAV, AIFF, ALAC, WMA, LPCM and Ogg Vorbis
Home Automation System
Elan, RTi, Crestron Home, Savant, Control4, URC
Supported Format (Network)
MQA
DSF: DSD64, DSD128
DFF: DSD64
Dimensions (HWD per Speaker)
305 x 200 x 311 mm (12 x 7.9 x 12.2 in.)
Weight (per set)
20.1kg (44.31lbs)
Power Input
100 – 240VAC 50/60Hz
Power Consumption
200W (operating power)
<2.0W (standby power)
Streaming Services
Spotify via Spotify Connect
Tidal via Tidal Connect
Amazon Music
Qobuz
Deezer
QQ Music via QPlay (coming soon)
Internet Radio
Podcast
*Depends on services availability in different countries
Primary Speaker Inputs
HDMI eARC
TOSLINK Optical
Digital Coaxial
Analog 3.5mm Auxiliary
USB Type A (service)
RJ45 Ethernet (network)
RJ45 Ethernet (interspeaker)
Output
RCA Subwoofer output
Wi-Fi Network Frequency Band
Dual-band 2.4 GHz / 5 GHz
Secondary Speaker Inputs
USB Type A (service)
RJ45 Ethernet (interspeaker)
Output
RCA Subwoofer output