The Kef LS50 Wireless II speakers, a complete all-in-one music system. Incorporating the amplifiers and wireless technology all within the speaker cabinets. All you need to do is plug them in and after a quick setup using the dedicated KEF App your ready to enjoy your favorite digital music. The Kef LS50 Wireless II will streaming music files up to 24bit/384kHz, as well as MQA Decoding and DSD256 for truly high-resolution audio playback. LS50 Wireless II is also Roon Ready certified. AirPlay 2 and Google Chromecast seamlessly connects your compatible Apple or Android device, whilst Bluetooth expands the options even further. With the KEF Connect app, you can stream Tidal, Amazon Music, Qobuz, Deezer, Internet Radio stations and podcasts. You can also stream directly from the native app with Spotify Connect. There are also wired connections for your TV, turntable, CD player and games console, via the HDMI, analogue, optical and coaxial sockets. Using KEF's trademark Uni-Q driver has which has been redesigned and improved, incorporating Kef's new Metamaterial Absorption Technology which is a highly complex maze-like structure that eliminates unwanted sound from the rear of driver, resulting in a purer, more natural performance. Each speaker is powered by a new 280W Class D amplifier for the bass drivers, and a new 100W class A/B amplifier powering the tweeters. LS50 Wireless II is available in three matte finishes, carbon black, titanium grey, and mineral white, as well as a Crimson Red Special Edition. All the colour options are mirrored on both the drive units and the rear-facing port. The top-mounted control panel is designed to be stylish and functional. The KEF S2 Floor Stands are optional but a must in our opinion, improving the performance and making them look simply stunning in any room. Specifications 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): Amplifier class (per speaker) Max SPL measured at 1m: 108 dB Wireless streaming features: AirPlay 2, Google Chromecast, ROON Ready, UPnP Compatible, Bluetooth 4.2 Streaming services: Spotify via Spotify Connect, Tidal, 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 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): MQA, DSF: DSD64, DSD128, DSD256, 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)
