KEF LS50 Wireless II (Pair, Carbon Black)

Product description

LS50 Wireless II is more than a high-performance loudspeaker; it’s the perfect all-in-one speaker system, streaming from any source thanks to wireless compatibility with AirPlay 2, Chromecast and more, plus wired connections for your TV, games console and turntable.

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LS50 Wireless II melts away, leaving you to enjoy the music. Revolutionary Metamaterial Absorption Technology eliminates distortion for a purer, more natural sound, while our 12th generation Uni-Q with MAT driver array delivers three-dimensional, wonderfully revealing sound anywhere in the room.

Metamaterial Absorption Technology Revolutionary sound absorption

A truly revolutionary tool in the KEF acoustic armory, Metamaterial Absorption Technology (MAT) is a highly complex maze-like structure that absorbs 99% of the unwanted sound from the rear of the driver, eliminating the resulting distortion and providing purer, more natural sound.

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Uni-Q The building block of KEF signature sound

KEF’s many pioneering innovations are all geared towards delivering breath-takingly natural sound; sound that lets you enjoy music as it was meant to be heard. Of all these pioneering developments, it is the Uni-Q driver array that sits at the heart of almost all our speakers.

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Music Integrity Engine Fast. Precise. Accurate.

All aspects of the LS50 Wireless II’s performance is aided by KEF’s bespoke Music Integrity Engine. This collection of bespoke Digital Signal Processing algorithms is optimised for the Uni-Q driver, enabling it to deliver a perfectly timed performance, for better imaging and a tighter sound.

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Wired or wireless connectivity

Whatever source you’ve got, LS50 Wireless II is ready for it.

Attention to every detail

Every aspect has been considered for acoustic benefits and from a design perspective.

Plentiful Power

The built-in amplifiers have been developed in-house, ensuring a smooth, detailed performance.

Let you be you

Beyond incredible performance, LS50 Wireless II is a breeze to set up thanks to the KEF Connect app.

All the music, all the time

No matter how you stream your music, LS50 Wireless II has you covered.

1 Connectivity

2 Design

3 Built-in Amplifiers

4 User-centered

5 Streaming

Specifications

Drive Units Uni-Q Driver Array: LF: 130 mm (5.25 in.) aluminium cone HF: 25 mm (1 in.) vented aluminum dome with Metamaterial Absorption Technology Frequency Range (-6dB) 40 Hz – 47 kHz *Depends on EQ settings Frequency Response (±3dB) 45 Hz – 28 kHz *Depends on EQ settings Amplifier Output Power LF: 280W HF: 100W *Per Speaker Amplifier Class LF: Class D HF: Class AB *Per Speaker 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 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 Primary Speaker Inputs HDMI eARC, TOSLINK Optical, Digital Coaxial, Analog 3.5mm Auxiliary, USB Type A (service), RJ45 Ethernet (network), RJ45 Ethernet (interspeaker) 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

How do I set up LS50 Wireless II?

A Wi-Fi network is required for initial setup. Download the KEF Connect App from the App Store or Google Play Store and install it on your mobile device. Follow instructions in the app to get the speakers connected (onboarded) to your Wi-Fi network.

What should I do if I cannot find my LS50 Wireless II in the network during set-up?

Make sure your device, speakers and router are within sight. The speakers broadcast on Channel 2 (2.4 GHz band). If your router overlaps this channel, it may cause issues. Go to your router settings and configure the 2.4 GHz channel to avoid overlap.

What router specifications does LS50 Wireless II support?

IEEE 802.11a/b/g/n/ac, IPv4, IPv6, Dual-band 2.4 GHz / 5 GHz

For better streaming stability, especially on hi-resolution music files, a 5 GHz Wi-Fi network with a router transmission speed of at least 1300 Mbps is recommended.

How far apart can I place the two speakers?

Wireless: up to 8 meters apart depending on your network condition. A congested network environment will have more interferences and may reduce this distance.

Wired: Cable length up to 10 meters

Can I change the Primary Speaker as the left channel?

By default, the Primary Speaker is the right channel and the Secondary speaker is the left channel. After connecting the speakers to your home Wi-Fi network, you can inverse the L/R channels in the KEF Connect App.

KEF LS Wireless Family

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Customer Reviews

4.2 out of 5 stars 150

4.6 out of 5 stars 19

4.3 out of 5 stars 185

3.8 out of 5 stars 78

Price

$2,999.99$2,999.99

$5,999.99$5,999.99

$1,499.99$1,499.99

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Drive Units

LF: 5.25 in. HF: 1 in.

HF: .75in MF: 4in LF: 4×5.25in

HF: .75in MF: 4.5in

HF: .75in MF: 4.5in

Frequency Range (-6dB) 85dB/1m

40 Hz – 47 kHz

26 Hz – 36 kHz

49Hz – 47kHz

49Hz – 47kHz

Frequency Response (±3dB)

45 Hz – 28 kHz

31 Hz – 24 kHz

54Hz – 28kHz

54Hz – 28kHz

Amplifier Output (Per Speaker)

LF: 280W HF: 100W

LF: 500W MF: 100W HF: 100W

LF: 70W HF: 30W

LF: 70W HF: 30W

Amplifier Class

LF: Class D HF: Class AB

LF & MF :Class D HF:Class AB

LF: Class D HF: Class D

LF: Class D HF: Class D

Max SPL Measured at 1m

108 dB

111 dB

102 dB

102 dB

Dimensions HxWxD (Per Speaker)

12 x 7.9 x 12.2 in.

42.9 x 8.3 x 15.5 in.

9.5 × 6.1 × 7.1 in.

9.5 × 6.1 × 7.1 in.

Wi-Fi Network Frequency Band

Dual-band 2.4 GHz / 5 GHz

Dual-band 2.4 GHz / 5 GHz

Dual-band 2.4 GHz / 5 GHz

Dual-band 2.4 GHz / 5 GHz

Available streaming services include: Spotify Connect, Tidal, Amazon Music, Qobuz, Deezer, QQ Music, Internet Radio, and Podcasts.
Each speaker consists of a 280 watt amplifier for the mid range and 100w amplifier for the tweeter.
Wireless Streaming features include: Apple AirPlay 2, Google Chromecast, ROON Ready, UPnP Compatible, Bluetooth 4.2
Resolution Up To: 384kHz/24bit depending on connection.
Featured Inputs: HDMI eArc, TOSLINK, Digital Coaxial, Analog 3.5mm Auxiliary, RJ45, WiFi

Product summary

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