LS50 Wireless II

WHAT HI-FI? AWARDS 2021 - 'PRODUCT OF THE YEAR'

"These sequels are among the most thrilling speaker systems we’ve heard." - October 2021, What Hi-Fi?

FULL REVIEW

Freedom

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

User-Centred

Let you be you

Intuitive on-boarding with user-centred features

Personalised listening experience via KEF Connect App

Performance

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

Design

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)

What's in the box

LS50 Wireless II
Remote control
Interspeaker Cable
Power cord
Quick Start Guide, Warranty
*Contents and colour vary by region

Listen and believe

Really great loudspeakers simply melt away, leaving you with just the music. A pristine voice, perfectly rendered layers of instruments you can lose yourself in, sound so clear it’s as though the artist is there with you. This is what great loudspeakers with the best technology deliver.

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The Details

SPECIFICATIONS

Model

LS50 Wireless 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
UPnP Compatible
Bluetooth 5.0
Plays with Audirvāna

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

Home Automation System

Elan, RTi, Crestron Home, Savant, Control4, URC

Supported Format (Network)

MQA
DSF: DSD64, DSD128
DFF: DSD64

Dimensions (HWD per Speaker)

305 x 200 x 311 mm (12 x 7.9 x 12.2 in.)

Power Input

100 – 240VAC 50/60Hz

Power Consumption

200W (operating power)
<2.0W (standby power)

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

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 Frequency Band

Dual-band 2.4 GHz / 5 GHz

Secondary Speaker Inputs

USB Type A (service)
RJ45 Ethernet (interspeaker)

Output

RCA Subwoofer output

Metamaterial Absorption Technology is a joint development with Acoustic Metamaterials Group.