KEF LS 50W II

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 (coming soon)
• UPnP Compatible
• Bluetooth 4.2

STREAMING SERVICES

• Spotify via Spotify Connect
• Tidal via Tidal Connect
• Amazon Music
• Qobuz
• Deezer
• QQ Music via QPlay (coming soon)
• 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)

<2.0W (standby power)

PRIMARY SPEAKER INPUTS

• HDMI eARC
• TOSLINK Optical
• Digital Coaxial
• Analog 3.5mm Auxiliary
• USB Type A (service)
• RJ45 Ethernet (network)
• RJ45 Ethernet (interspeaker)

OUTPUT

RCA Subwoofer output

WI-FI NETWORK STANDARD

IEEE 802.11a/b/g/n/ac IPv4, IPv6

WI-FI NETWORK FREQUENCY BAND

Dual-band 2.4 GHz / 5 GHz

SECONDARY SPEAKER INPUTS

• USB Type A (service)
• RJ45 Ethernet (interspeaker)

OUTPUT

RCA Subwoofer output