Description
Product highlightsbi-amped design with separate woofer and tweeter amplifiers for greater headroom and lower distortion Uni-Q Driver Array technology makes your entire room sound like the sweet spot innovative Metamaterial Absorption Technology (MAT) absorbs high-frequency vibrations to eliminate distortion 5-1/4 aluminum cone woofer amplifier power: 280 watts (Class D) 1 vented aluminum dome tweeter amplifier power: 100 watts (Class AB) connection between left and right speakers: wired (allows 24-bit/192kHz audio) or wireless (allows 24-bit/96kHz audio) frequency response: 45-28,000 Hz (±3 dB) peak SPL: 108 dB MDF enclosure with elegant curved front baffle bass-reflex cabinet with patented offset, flexible port for reduced midrange coloration Bluetooth 4.2 with aptX® for high-quality audio streaming performance built-in dual-band Wi-Fi® for audio streaming from your network compatible streaming platforms include Apple AirPlay® 2, Google Chromecast and Roon (firmware update required) uPnP for playing music files from your local network KEF Connect app offers comprehensive remote control via your Apple® or Android™ device compatible with popular music streaming apps, including Spotify (via Spotify Connect), Tidal, Amazon Music, Qobuz, and Deezer precise digital signal processing controls allow optimal room integration HDMI eARC (accepts signals up to 24-bit/192kHz) for improved sound from a compatible TV Toslink optical digital input (24-bit/96kHz) coaxial digital input (24-bit/192kHz) RJ45 Ethernet port for network connection (24-bit/384kHz) analog 3.5mm auxiliary input USB Type A input (for service only) mono RCA subwoofer output supported file formats (all inputs): MP3, M4A, AAC, FLAC, WAV, AIFF, ALAC, WMA, LPCM and Ogg Vorbis also supports DSD files up to 12.3 MHz and MQA files via network connection 7-15/16W x 12H x 12-1/4D weight: 44.31 lbs. (both speakers) warranty: 2 years Whats in the box2 Wireless powered speakers Two 6.5 AC power cords 10 Cat-6 interconnect speaker cable Remote control 2 AAA batteries Quick Start Guide Important Safety Information Warranty Information About this itemWritten by Crutchfields Eric A. Innovative Metamaterial Absorption Technology (MAT) absorbs high-frequency vibrations to eliminate distortion in KEF LS50 Wireless II speakers. A customer favorite gets an upgrade KEFs original LS50 Wireless speaker system made waves in the audio world and was a huge hit with our customers, offering impressive sonic fidelity in a convenient, self-powered package. The new LS50 Wireless II retains the sleek looks while making some important tweaks for even better performance. For starters, KEF has increased the built-in power, with 280 watts for each woofer and 100 watts for each tweeter. Revolutionary sound absorption This speaker benefits from KEFs new and innovative Metamaterial Absorption Technology (MAT). Its a highly complex, mazelike structure thats tuned to absorb unwanted sound coming from the rear of the tweeter. The resulting sound is clear, purer, and more detailed. Wireless music streaming options These speakers are equipped with built-in dual-band Wi-Fi® and Bluetooth® 4.2 for easy music streaming. The free KEF Connect app offers access to popular music streaming apps, including Spotify® (via Spotify Connect), Tidal, Amazon Music, Qobuz, and Deezer. And internet radio and podcast listening are on tap as well. Wired connections The primary speaker in this pair is equipped with the following high-resolution digital inputs for connecting external components: RJ-45 Ethernet port for network connection (accepts signals up to 24-bit/384kHz) HDMI eARC (24-bit/192kHz) for improving sound from a compatible TV Toslink optical digital input (24-bit/96kHz) coaxial digital input (24-bit/192kHz) Theres also an analog 3.5mm auxiliary input and a mono RCA subwoofer output. The speakers can be interconnected via Ethernet cable or wirelessly. (A wired connection allows higher-resolution 24-bit/192kHz playback.) The LS50 Wireless II features a patented offset, flexible port for reduced midrange coloration. A room-filling sweet spot, thanks to Uni-Q technology KEFs patented Uni-Q technology places each speakers tweeter in the acoustic center of the bass/midrange cone. That lets the LS50 Wireless II create a detailed, accurate, three-dimensional sound image. In essence, it makes the sweet spot — the ideal listening position — much larger. Sit wherever you like! Itll sound fantastic. Careful cabinet design The LS50 Wireless IIs extremely rigid cabinet uses smooth, curved surfaces that help the sound radiate outward without distortion. It also features a patented offset, flexible port for reduced midrange coloration. As with previous LS50 models, the cabinet uses a grille-less design to show off the cool-looking driver array and super-stylish color options. Get the most out of your speakers Proper speaker placement is also crucial to getting the best performance out of the LS50 Wireless IIs. Placing them on a pair of color-coordinated KEF S2 speaker stands helps eliminate unwanted vibrations and reflections. Read our article on stereo speaker placement for positioning and setup tips.
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