KEF LS50 Wireless II Powered Bookshelf Speakers – Pair (Carbon Black)
€3,000
Price: $2,999.99
(as of Sep 30, 2025 22:00:06 UTC – Details)
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.
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
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.
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
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.
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
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 134
5.0 out of 5 stars 1
4.4 out of 5 stars 168
3.8 out of 5 stars 61
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
Customers say
Customers praise these speakers for their sound quality, particularly noting their controlled bass, and describe them as a top-quality HiFi system that offers great value for money. They are easy to set up and provide excellent clarity, with one customer highlighting their rock-solid imaging. The connectivity and functionality receive mixed reviews, with several customers reporting connectivity problems and functionality issues. The remote control system also gets mixed feedback.
7 reviews for KEF LS50 Wireless II Powered Bookshelf Speakers – Pair (Carbon Black)
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K. L. Manheimer –
The best combination of high quality sound, functionality, and compactness that I’ve encountered
As someone who appreciates high quality sound and wants that with the convenience of multi-room functionality that Wi-Fi streaming provides, this speaker system is an absolute revolution.It says a lot about the situation that I spent way less time setting up the new system than I did taking down the old one. I estimate that I replaced more than 170 lbs of equipment with around 40 lbs that this pair of speakers (including built-in amps and etc) weighs. So much less clutter! Setup was effortless and effective, the sound is better (and it was previously quite good, until recently, when my old power amp died) and the functionality is spectacularly better. This system offers an extremely simple and direct route to decent to very good sound (better at the price than I could achieve with lots of careful effort over many years) and all the functionality that I, personally, currently want.I used an inexpensive old subwoofer with the old setup. I continue to use it with these new speakers. I think I would be happy without the subwoofer, but like the tiny bit of additional rich low-bass and kick that it provides.That points to something that astonishes me about this system. The KEF Connect app equalizer made it very easy to account for the situation of the speakers in the room and to incorporate the subwoofer. I’m a software developer, and think they did an extremely good job with the human factors of the app. I don’t need or want the app to provide the functionality that my streaming music players provide â as another reviewer said, let Google and App and Tidal, Roon, etc do that. I’m very pleased with how well the app does what I need it to do. Similarly, the remote control gives me a convenient way to adjust the volume, mute, and on rare occasions when the I need to override the automatic source detection, change the source.I haven’t yet said anything specific about the sound, and I’m still finding out how it is. So far, I’m delighted. I’m finding more clarity, richness, and dynamics than I’ve experienced before in my home. I continue to go through different parts of my collection, as the mood strikes, and discover myself enjoying aspects of the music that I hadn’t noticed before. People often talk about the almost palpable imaging that Kef’s coincident-centers Uni-Q drivers provide. It’s true, and it enhances the experience. The thing is, I haven’t found any downsides. As I said, they’re still new, there’s more to discover. But I’m happy. (-:I’ve only had the speakers for a few weeks, and am wary of an “all eggs in one basket” dependency on them. I will be dependent on KEF and/or after-market repair services if something breaks. That said, this is KEF’s second iteration of the model, which could mean that a lot of the bugs have been shaken out. Plus I was in a bind with the old system when my power amp died, and that’s the case for any component in the multi-component chain. It’s all trade-offs.Ultimately, I got a high quality, exquisitely well-integrated system. Provided that they’re reliable, for anyone who streams music in their home, these are the best prospects that I’ve encountered for getting high fidelity and high functionality at anywhere near this price, more so than anything else I’ve seen up to now.
royCfus –
Worth every penny
These are fantastic speakers. The clarity ,detail, and imaging exceeded my expectations. They have a warmer tone to them that I was not sure I liked at first. I tend to prefer sound on the slightly brighter side of neutral but after they broke in I was very happy with what I heard. The KEF Connect app is decent, better than some and worse than others. You can control inputs through the app on your phone, connect directly through Airplay for YouTube videos, and PC using Tidal. The Wi-Fi connection glitched on me when I had connected and played through Tidal on my PC, than switched back to the app again using Tidal on my phone. At that point, selected songs would not play and I had to disconnect the power and let them reset. Save some early app glitches that software can fix, the rest of the app and its features are easy to use and intuitive which is welcome. They communicate wirelessly between themselves and come with a cable that when connected, improves the quality ceiling and could eliminate drop-outs if encountered. I would recommend these to anyone wanting great sounding speakers in an all-in-one space saving package.
Eva N. –
True Hi-Fi without the hassles
A long time ago I was entranced by Kef 104ab speakers. Even then, Kef made speakers that were a superior price/performance value compared to their competitors. After I bought them, I learned the 104’s were murderously hard to drive. It took at lot of effort, time, experimentation, and money to figure it all out, but it was worth it. It was what had to be done back in the day to get a really optimized system for demanding speakers.The LS50 Wireless II’s outperform the 104ab’s in all respects.. and that’s impressive. But THEY have all the amplification issues completely resolved right out of the box due to carefully optimized amplifiers, DAC’s and crossover management. The Kef application make it so simple to optimize their EQ for your listening space, which is not a thing with passive speakers! Set up is simple. You don’t have to go through the personal growth experience to get them optimized or find amplifiers that are ideally matched for them!This is a great system for listeners who want to just use and enjoy their music and not want to futz with their equipment for it to work well. I know how to do it the old fashioned way, but it’s a luxury to get this level of performance and system integration with so little effort!
Orijit Dhar –
Amazing sound with Subwoofer (KC 62) – But annoying issues
I tried this unit as it fulfilled three criterions: Powered , Small Form factor, and pleasant aesthetics.I fell in love with how they looked and the build quality was top of the line. The sound when combined with the Kef KC 62 was amazing. Loved it.The issue I had was as follows:Within 2 weeks of testing, there were 3-4 incidences of loud crackle/pop sound followed by the speaker going into error mode ( power led flashing) . I had the speaker setup as wireless primary / secondary. My typical usage was airplay / kef app + amazon music.I do have another wireless sounder in the same room, perhaps it’s an interference issue. But at 4500 dollars ( with Kef KC62 + stands ) , I wanted something that was flawless.I am talking to customer support and they are responsive enough for now, and seeing if replacing the LS50ii may solve the issue ( wondering if the unit is defective). .. If I find another unit, I will revise this review.Overall, wanted to keep it , loved many things about it, but not sure why it has this type of issues at this price point.
DC –
Impressive sound quality for such small speakers. Incredibly easy to set up and a great iPhone app. Not cheap, but a very high quality product.
Whatever –
problem with scanning QR, but once it worked they worked!
lao-wenziyutou –
Arrived several days earlier than the predicted arrival time, the logistics is fastOf course, things are good things, and there are a lot of comments on the Internet, so I won’t say anything. But after opening the box, the pungent chemical smell has not dissipated for a few weeks after opening the window. It is a defect, right?