KEF recently announced another new product – the LS50 Wireless II speaker system. The model differs from its predecessor, first of all, by the use of the MAT solution – the Technology of Absorbent Material.
The KEF LS50 Wireless II also received an updated driver and MAT disc behind it. The built-in 100-watt class AB amplifier drives the tweeter, while the mid-low-frequency driver is driven by a 280 watt class D amplifier. The proprietary Music Integrity Engine makes the most of the combination of a coaxial driver and MAT damper disc. The connection between the right and left speakers is wireless. Each speaker has a subwoofer output.
Support for digital streaming formats includes PCM 24/384 and DSD256, plus MQA decoding. The model is Roon Ready and can be controlled using the proprietary KEF Connect app, which integrates all major music streaming services from Tidal, Amazon Music, Qobuz, Deezer, Internet radio, Spotify Connect, MQA and Roon.
The KEF LS50 Wireless II monitors will be available in four finishes: Titanium Gray, Carbon Black, Mineral White and Crimson Red Special Edition; S2 floor stands are also available in the color of the speaker enclosures.
Specifications KEF LS50 Wireless II:
Driver Uni-Q woofer / midrange driver – 130 mm (5.25 “) with magnesium-aluminum alloy cone;
Tweeter – 25 mm (1 “) with an aluminum alloy dome with Absorbent Metamaterial Technology (MAT);
Frequency range (-6 dB) 47 Hz – 45 kHz (less);
43 Hz – 45 kHz (standard);
40 Hz – 45 kHz (extra);
Frequency response (± 3 dB) 53 Hz – 28 kHz (less)
48 Hz – 28 kHz (standard);
45 Hz – 28 kHz (extra);
Max. sound pressure at a distance of 1 m – 108 dB (full range, without a subwoofer);
Harmonic distortion <0.4% @ 175 Hz – 20 kHz (90 dB SPL, 1 m);
Power supply – 100-240 V AC, 50/60 Hz;
Crossover frequency – 1.9 kHz;
The minimum resistance is 3.5 ohms;
Power consumption – 200 W (in operating mode); <2.0W (standby);
LF / MF power amplifiers: 280 W, class D;
HF – 100 W, class AB;
Input impedance – 50 kOhm;
Dimensions – 305 x 200 x 311 mm;
Weight Main speaker – 10.1 kg;
Auxiliary speaker – 10.0 kg;
Supported formats (all physical sources) – MP3, M4A, AAC, FLAC, WAV, AIFF, ALAC, WMA, LPCM and Ogg Vorbis;
Supported formats (for network sources only) – MQA / DSF: DSD64, DSD128, DSD256 / DFF: DSD64.