KEF LS50 Wireless II Powered Bookshelf Speakers


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The Ultimate Wireless HiFi Speakers:
LS50 Wireless II is more than a high-performance loudspeaker; it’s the perfect all-in-one speaker system, streaming from any source thanks to wireless compatibility with AirPlay 2, Chromecast and more, plus wired connections for your TV, games console and turntable. Great sound, no strings attached.



All the music, all the time
Play all major music services and supports all major audio formats
Wireless both from source and between the speakers
Comprehensive applications and connectivity

Let you be you
Intuitive on-boarding with user-centred features
Personalised listening experience via KEF Connect App

Most accurate,immersive sound.
Metamaterial Absorption Technology for pure, natural sound
12th generation Uni-Q with MAT for exceptional acoustic accuracy
Music Integrity Engine for rich, full-bodied sound
System power: LF 280W class D, HF 100W class A/B, Max. SPL: 108dB

Attention to every detail
Optimised cabinet design for best acoustic performance
Available in 4 finishes
With mounting inserts to secure on KEF S2 Floor Stand (available as separate item)

Listen and believe:
Really great loudspeakers simply melt away, leaving you with just the music. A pristine voice, perfectly rendered layers of instruments you can lose yourself in, sound so clear it’s as though the artist is there with you. This is what great loudspeakers with the best technology deliver.

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 Technology
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 (Per Speaker)
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 4.2
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
Supported Format (Network)
DSF: DSD64, DSD128
Dimensions (HWD per Speaker): 305 x 200 x 311 mm (12 x 7.9 x 12.2 in.)
Power Input: 240VAC 50/60Hz
Power Consumption: 200W (operating power), <2.0W (standby power)
Streaming Services:
Spotify via Spotify Connect
Tidal via Tidal Connect
Amazon Music
QQ Music via QPlay (coming soon)
Internet Radio
*Depends on services availability in different countries
Primary Speaker Inputs:
Digital Coaxial
Analog 3.5mm Auxiliary
USB Type A (service)
RJ45 Ethernet (network)
RJ45 Ethernet (interspeaker)
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)
RCA Subwoofer output

Additional information

Weight 24 kg
Dimensions 59 × 40 × 39 cm

Black, Royal Blue, Titanium, White, Crimson Red