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)

Technical Specification

• Model
  LS50 Wireless II
• Source Resolution
  Network up to 384kHz/24bit Optical up to 96kHz/24bit
  Coaxial up to 192kHz/24bit
  HDMI up to 192kHz/24bit
• Streaming Services
  Spotify via Spotify Connect
  Tidal via Tidal Connect
  Amazon Music
  Qobuz
  Deezer
  QQ Music via QPlay (coming soon)
  Internet Radio
  Podcast
• 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
• Interspeaker Connection
  Wireless: all sources resampled to 96kHz/24bit PCM
  Wired: all sources resampled to 192kHz/24bit PCM
• Frequency Response (±3dB) Measured at 85dB/1m
  45 Hz – 28 kHz
  *Depends on EQ settings
• Home Automation System
  Elan, RTi, Crestron Home, Savant, Control4, URC
• Primary Speaker Inputs
  HDMI eARC
  TOSLINK Optical
  Digital Coaxial
  Analog 3.5mm Auxiliary
  USB Type A (service)
  RJ45 Ethernet (network)
  RJ45 Ethernet (interspeaker)
• Amplifier Output Power (Per Speaker)
  LF: 280W
  HF: 100W
• Supported Format (All Inputs)
  MP3, M4A, AAC, FLAC, WAV, AIFF, ALAC, WMA, LPCM and Ogg Vorbis
• Output
  RCA Subwoofer output
• Amplifier Class
  LF: Class D
  HF: Class AB
• Supported Format (Network)
  MQA
  DSF: DSD64, DSD128
  DFF: DSD64
• Wi-Fi Network Frequency Band
  Dual-band 2.4 GHz / 5 GHz
• Max SPL Measured at 1m
  108 dB
• Secondary Speaker Inputs
  USB Type A (service)
  RJ45 Ethernet (interspeaker)
• Wireless Streaming Features
  AirPlay 2
  Google Chromecast
  ROON Ready
  UPnP Compatible
  Bluetooth 4.2
• Power Input
  100 – 240VAC 50/60Hz
• Output
  RCA Subwoofer output
• Power Consumption
  200W (operating power)
  <2.0W (standby power)
• Dimensions (HWD per Speaker)
  305 x 200 x 311 mm (12 x 7.9 x 12.2 in.)

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