KEF LS50 Wireless
High-performance powered speakers with Wi-Fi® and Bluetooth® (Titanium Grey/Red)
From KEF: LS50 Powered Speakers
KEF LS50 Wireless - Components and cabinet are engineered to make the LS50s sound bigger than they look.
Our take on the KEF LS50 Wireless by Crutchfield's Eric Angevine
A gorgeous, versatile high-end audio solution
We see and hear dozens of new loudspeakers every year at Crutchfield, so it can be tough for one to stand out from the crowd. But these KEF LS50 Wireless powered speakers have a lot to offer, and they really grabbed our attention. They're beautiful, compact, easy to use, and versatile enough to form the core of your everyday sound system. And you won't believe the rich, detailed sound they produce.
Audiophile sound quality
When you're going for that magical level of sonic realism that can raise goosebumps, one of the biggest challenges is matching the right amplifier to your speakers. So KEF has eliminated the guesswork: they put two custom-designed amplifiers in each speaker — 200 watts to each woofer, and 30 watts to each tweeter — so each driver gets perfect power. And the attention to detail doesn't stop there. Each driver has a high-end 192 kHz/24-bit DAC to make digital sound come alive.
Built-in digital signal processing (DSP) offers an easy Beginner mode, but you may prefer to take total control in Expert mode, and tweak the sound to perfectly suit your unique room. Whichever way you choose, you can make your changes via a free smartphone app, available for Apple® and Android™ devices.
Praise for KEF LS50 Wireless speakers from digitalaudioreview.net
"Something for audiophiles, something for mainstreamers – after all, it's in the LS50 Wireless' DNA. As a straddler of worlds, the KEFs walk away not only with a Knockout Award but also DAR's Product of the Year award for 2016. If this product doesn't convince audiophiles of the legitimacy of active loudspeakers, nothing will."
— From John H. Darko's review at digitalaudioreview.net, December 29, 2016
Read the full review
A room-filling "sweet spot," thanks to Uni-Q technology
KEF's patented Uni-Q technology places each speaker's tweeter in the acoustic center of the bass/midrange cone. That lets the LS50 Wireless create a detailed, accurate, three-dimensional sound image. In essence, it makes the "sweet spot" — the ideal listening position — much larger. Sit wherever you like! It'll sound fantastic.
My hands-on experience with the KEF LS50 Wireless
I originally heard these speakers in our spacious training room at Crutchfield HQ, then enjoyed them later in a smaller conference room. Nothing prepared me for what they'd sound like in my own home.
I fussed for a while, trying them on different stands before deciding to place them on either side of the TV, directly on the entertainment furniture. Easy-to-use Speaker EQ buttons on the back of the right-hand speaker let me quickly customize the speakers' sound to suit each location change. The free KEF LS50 Wireless app was there to help me further tweak the output so it sounded full and clear in my living room — an open-plan, more-or-less rectangular space with glass along one side.
Once I had the basics taken care of, I started to have fun. I elected to stream some dynamic, demanding tunes via the built-in Spotify Connect, and they sounded amazing. The bass is reasonably deep and accurate when using the speakers alone, but it's a good idea to plug a subwoofer into the provided outlet to get the full experience from music and movie soundtracks. Cellos and violins sound heavenly in string quartet selections. I've revisited every one of my favorite jazz singers, just to hear the vocal nuances the LS50s can uncover. They dramatically expand the soundstage and reveal detail in every track I play.
If you have limited space, but want to enjoy your music to the fullest, these speakers make a big, beautiful sound that belies their relatively small footprint.
Customizable room EQ with the free app
KEF knows your room is unique, so they've put the power of choice in your hands. Just download KEF's free app, and you'll be able to tune the speakers to suit your space. Once you've made all the big adjustments, you can revisit and make manual tweaks to your heart's content.
KEF LS50 Wireless powered speakers offer a variety of connection points, so you can choose how you want to use them.
Think of a way you want to use these LS50 Wireless speakers, and you'll likely find a connection to make it happen. Want to transform the sound from your TV? Run an optical digital cable to the back of the right-hand speaker. Enhance computer gaming by plugging your machine into the asynchronous USB port. You can even run the output of your phono preamp into the RCA inputs and enjoy your favorite records.
Or, you can skip the wires altogether and stream your favorite high-res tunes through the LS50 Wireless' Bluetooth® connection. Or use your home's Wi-Fi® network to play music files from a DLNA-compatible computer or music server. The left and right speakers share audio signals via an included Ethernet cable.
Did we mention that they're super-stylish?
LS50 Wireless speakers come in three attractive color combinations, so they'll delight your eyes as much as they do your ears. Each has a curved front baffle that adds a touch of elegance to your shelf or speaker stands. Even the most design-conscious homeowner can find a prominent place to display these beauties.
- frequency response: 79-28,000 Hz (±3 dB)
- bi-amped design with separate Class D woofer and tweeter amplifiers for greater headroom and lower distortion
- woofer amplifier power: 200 watts
- tweeter amplifier power: 30 watts
- Uni-Q Driver Array technology makes your entire room sound like the "sweet spot"
- individual 192kHz/24-bit DAC for each driver
- 5-1/4" magnesium/aluminium alloy woofer
- 1" vented aluminium dome tweeter
- peak SPL: 106 dB
- Bluetooth® 4.0 with aptX® for high-quality audio streaming performance
- built-in dual-band Wi-Fi® for audio streaming from DLNA devices on your network
- Spotify Connect lets you stream music wirelessly using the Spotify app on your smartphone or tablet (premium subscription required; requires firmware 1.62 or later)
- precise digital signal processing controls allow optimal room integration
- free downloadable app lets you make pinpoint EQ adjustments with your Apple® or Android™ device
- bass-reflex cabinet with elliptical rear port for accurate, musical bass
- MDF enclosure with elegant curved front baffle
Connections (located on back of right-hand speaker):
- stereo line level RCA input
- Toslink digital optical input (accepts signals up to 24-bit/96kHz)
- asynchronous USB Type B input (accepts signals up to 24-bit/192kHz)
- 10/100 Mbps RJ45 Ethernet input
- mono RCA subwoofer output
- detachable power cord
Dimensions and Warranty:
- 7-7/8"W x 11-7/8"H x 13-1/4"D
- weight: 22 lbs. (left speaker), 22.5 lbs. (right speaker)
- warranty: 1 year
- Our 60-day money-back guarantee
What's in the Box:
- Bluetooth powered speaker (Right)
- Bluetooth powered speaker (Left)
- Two 6.5' AC power cords
- 10' Cat-6 interconnect speaker cable
- 6.5' USB-B to USB-A cable
- 42" Ethernet cable
- Remote control (CR2032 battery installed)
- Quick Start Guide
- Important Safety Information
- Warranty Information
- "Caution/Warning" sheet
Awesome, great customer service with Crutchfield. Love the speakers. Exceptional sound quality.
Daniel, Marion, IA
KEF LS50 Wireless Reviews
Average Customer Review(s):
Thanks for submitting your review
Uni-Q Driver Array: The LS50 powered speakers feature KEF's patented Uni-Q driver configuration, in which the tweeter is mounted at the acoustic center of the midrange cone. With both acting as a single point source, the sound is dispersed widely and evenly throughout the listening area allowing you to experience superbly defined and perfectly balanced stereo imagery with a wide "sweet spot". The Uni-Q driver array is made up of a 1" aluminum vented-dome tweeter and a 5.25" magnesium/aluminum alloy cone woofer.
- 1" Aluminum Vented-Dome Tweeter: The geometry of the tweeter dome matches that of the midrange cone to avoid disrupting the waveform. By smoothening high frequency response, this helps to account for the detailed and strikingly natural-sounding treble. The 1" aluminum vented-dome tweeter utilizes a Tangerine Waveguide to encourage the sound to radiate spherically for wider, more even dispersion so that everyone in the room enjoys the same superb sound quality. A large internal vent prevents potentially distorting high pressures from building up behind the dome in the critical vocal region, preserving all the nuance and fine detail of the original performance.
- 5.25" Magnesium/Aluminum Alloy Woofer: The 5.25" woofer uses a magnesium/aluminum alloy cone that is light, stiff, and smooth for natural midrange and midbass sound. A well as allowing the midrange cone its full extension, KEF's ingenious Z-flex surround guides the sound from the tweeter across the surround without any disturbance or secondary radiation. Treble response is clearer and sweeter.
Note: The LS50 powered speaker system does not include grilles.
Bi-Amplifier Configuration: The 1" aluminum vented-dome tweeter and 5.25" magnesium/aluminum alloy woofer are powered by an incredible clean and fast 230 watt amplifier in a bi-amp dual mono configuration (200 watts to the woofer and 30 watts to the tweeter) that produces high-fidelity sound.
Note: Because the LS50 Wireless speaker system is self-powered, each speaker will need to be plugged into an AC wall outlet.
Advanced Time Correcting DSP: The LS50 Wireless employs an advanced time correcting DSP crossover that corrects for inherent time delays introduced in the crossover stage.
FEA-Designed Cabinet: The FEA-designed cabinet with its constrained layer damping bracing and precision engineered curved baffle, along with the elliptical flexible port all work in concert to prevent cabinet vibration and resonances that produce unwanted sound coloration for clear, spacious, distortion-free sound.
- Curved Baffle: The curved baffle is shaped so that the sound waves spread from the drivers with minimum reflection from the edges which gives a very nice spacious sound. The curvature also improves the rigidity of the baffle which reduces vibration and sound coloration.
- Constrained Layer Damping: The constrained layer damping which is between the brace and the enclosure walls and also the front baffle, prevents the cabinet from vibrating and radiating sound. This helps to prevent coloration in the midrange.
- Flexible Port Tube: The rear-firing port tube has a flexible wall which allows midrange sound that is travelling down the port tube to escape back into the cabinet and prevents longitudinal resonances; which can otherwise radiate and cause midrange coloration. The port tube also has very carefully flared walls to avoid the chuffing noises that you can hear when you get air turbulence inside the port.
24-Bit/192kHz DACs: The LS50 Wireless features an end-to-end 192kHz/24-bit high-resolution digital signal path with two separate DACs for each speaker, for a total of four for the pair.
Speaker EQ: The LS50 Wireless speaker system provides a built-in Speaker EQ to tailor the sound of the system to the placement of the speaker. Select from "Desk", "Stand", "Wall", or "Free Space".
Advanced Audio Settings: Through the KEF LS50 Wireless app for Apple iOS 8.0+ and Android OS 4.1+ you get access to advanced audio settings to expertly tailor the system's sound to your room environment and preference.
- Room Acoustics: You can select the size of your room (Small, Medium, or Large), as well as indicate the room setting (Damped, Moderate, or Lively). In addition, you can indicate how far the speakers are from the back wall.
- Bass & Treble: You adjust the treble trim from -2dB to +2dB. The bass extension can be set to Less, Standard, or Extra. There is also phase correction between the two speakers.
- Sub Controls: If you connect a powered subwoofer you can activate a variable high pass (50-120Hz) & low pass (40-250Hz) crossover. You can also adjust sub polarity and sub gain (-10 to +10dB), as well as the balance between subwoofer and speaker.
Tethered Cable: The speakers are labeled "RIGHT" & "LEFT". The included 10' Cat-6 cable plugs into the back of each speaker to connect them together as a stereo pair. You can set the balance between the Right & Left speaker.
Subwoofer Output: The KEF LS50 Wireless speaker system is equipped with a mono-RCA subwoofer output to connect a powered sub (sold separately).
Wired or Wireless Network Connectivity: The KEF LS50 speaker system can be connected to your home network via a wired (Ethernet) or wireless (WiFi) connection. There is a RJ-45 Ethernet port (10/100Mbps) on the back of the speaker which allows for a hardwired connection. Built-in 2.4/5GHz dual-band WiFi (802.11 a/b/g/n) allows the LS50 speaker system to connect wirelessly to your home network.
Note:recommends streaming Hi-Res music files over a 5GHz WiFi network with a router transmission speed of at least 1300Mbps
DLNA Compliant: The LS50 Wireless is a DLNA Digital Media Renderer and can play Hi-Res music files (up to 24-bit/192kHz) from other DLNA servers and NAS (Network Attached Storage) devices. The following music files can be streamed wireless via DLNA.
|File Format||Sampling Frequency||Bit Rate or Bit Depth|
|MP3||8-48 kHz||16 bit|
|WMA||8-48 kHz||16 bit|
|AAC||32-96 kHz||16 bit|
|AIFF||32-192 kHz||16 / 24 bit|
|FLAC||8-192 kHz||16 / 24 bit|
|WAV||8-48 kHz||16 / 20 / 24 bits|
|PCM||8-192 kHz||16 / 20 / 24 bits|
Note: The LS50 Wireless does not support gapless playback.
Asynchronous USB-B Port: The LS50 Wireless speaker system is outfitted with an Asynchronous USB-B port for playback of 2ch PCM music files (up to 24-bit/192kHz) from your Windows PC (7-up) or Mac computer (OSX 10.6-up). If you are using a Windows PC, you will need to download a dedicated USB audio driver from the KEF website.
Note: There is also a USB-A port, but this is for service and software/firmware updates only. It cannot be used for music streaming.
Optical Digital Input: The LS50 Wireless speaker features an optical (toslink) digital input with support for 2ch PCM audio (up to 24-bit/96kHz). The Optical digital input does not support Dolby Digital, DTS, or other multi-channel formats.
Stereo RCA Input: The LS50 Wireless powered speaker offers an analog stereo RCA output for connection of an analog audio source device. If you want to connect a turntable, you will need a turntable with a built-in phono preamp or an external phono preamp (sold separately).
Bluetooth 4.0: With its built-in Bluetooth (version 4.0), you are able to wirelessly stream stored music and music apps from your Bluetooth-enabled Apple iPod/iPhone/iPad, Android smartphone/tablet, Windows Phone/PC, Mac computer/laptop and other Bluetooth source devices to the KEF LS50 speaker. You'll still need to control music playback and view song/artist info from your Bluetooth source device.
- aptX: In addition to support the standard Bluetooth SBC codec, the KEF LS50 offers support for aptX. With aptX, you can stream CD-quality sound from aptX compatible devices (like Android OS 4.0+). Now your wireless music sounds rich, full, and natural with less compression.
- SSP: With SSP (Simple Secure Pairing), Bluetooth source devices can be paired with a single press of a button and without entering PIN code. Up to 8 devices can be paired with the LS50 speakers and two devices can remain connected, but only one device can be playing at a time.
Note: Due to the differences in Bluetooth technology, some Bluetooth enabled devices may be incompatible, function improperly, or may not support all features when used with the KEF LS50.
Top-Panel & Remote Control: The KEF LS50 Wireless features top-panel touch-sensitive controls for Power, Source Selection, Bluetooth Pairing, and Volume. The included IR remote provides wireless operation of the same functions, plus Play/Pause, Previous/Next Track and Mute.
Remote App for iOS & Android: The KEF LS50 Wireless app for Apple iOS 8.0+ and Android OS 4.1+ provides comprehensive and intuitive controls for the LS50 Wireless speaker system through your compatible smartphone or tablet device. The KEF LS50 Wireless app offers simple setup, flexible sound adjustment, and music streaming from your compatible mobile device and/or DLNA music server with complete playback control, song/artist info and album art.
Detachable AC Power Cords: Each speaker is powered by standard household current using the internal power supply and a detachable AC power cord.Note: The KEF LS50 Wireless speaker system is not battery powered.
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.
Why did you buy this?
Great reviews on this speaker. Wireless option makes it very compelling. [ edgar Apr 09, 2018 ]
Good quality sound combined with simple set up [ TERRI Mar 13, 2018 ]
Good ratings. Best of color choices offered (would have preferred black cabinet & black speaker cone). [ Kelly Feb 09, 2018 ]
Excellent reviews. [ P Dec 04, 2017 ]
Good reviews and simple plug and play options [ Ronnie Aug 12, 2017 ]
I have old ears. I need good treble and have to sit in the sweet spot. TV sound is a particular problem for me. Most sound bars have a very narrow dispersion. So irritating. These KEFs claim to have wide dispersion and are movable. I will use as a sound bar. If they are as good as claimed (they SHOULD be at that price), then I may audition in my stereo system. Soon, KEF will have custom metal stands for $400? Sheesh. If my wife finds out, I'm in Big Trouble. [ HOYT Jul 20, 2017 ]
Need a wireless system [ Larry Feb 11, 2017 ]
Reputation and online comments on the system [ Walter Jul 25, 2018 ]
Beautiful, Amazing sound (at least ive heard ) and been wanting to have a system with high power and DAC as well as bluetooth [ T May 25, 2018 ]
ratings [ Ira Mar 13, 2018 ]
great reviews [ Peter Oct 29, 2017 ]
Great reviews and sound...... [ HARVEY Aug 01, 2017 ]
highly reviewed. integrated with amp and da [ Anthony Jun 07, 2017 ]
THE KEF LS05 SPEAKERS HAVE MOVING SOUND. [ Xishan May 14, 2017 ]
Color fits better in my room [ CLIFFORD Mar 26, 2018 ]
Item I wanted available at open box price from reputable company [ Roger Jul 26, 2017 ]
Great reviews and intended application for the new fireplace we are developing. [ JONATHAN Jan 28, 2017 ]
12 questions already asked
No, but you should be able to connect an external phono stage to the unit's RCA AUX inputs. [ Jon Nov 25, 2017 ]
Has analog input to add phono to ls50w. [ Jamie Nov 23, 2017 ]
Sorry. I? don't know [ David Nov 23, 2017 ]
No it does not have one built in, you would need to add a separate phono preamp [ Michael Nov 23, 2017 ]
The reviews are not overrated. The LS50 Wireless speakers are worth the price and more. They are often compared to systems costing $10K - $50K, and the reviews are correct. The speakers are NOT overrated. [ Robert Dec 27, 2017 ]
One way for me to describe how these KEFs sounds, is think of a pair of well amped Senn HD 800s (Original) without having to wear them. Bass is more pronounced. So definitely not thin sounding. [ David Apr 07, 2017 ]
As speakers they are wonderful: full bodied sound. First rate. They are wonderful with music wired or wireless from any source. I use them with TV and they're great. They sound like speakers that would sell for many multiples of their price. That said, they are NOT surround sound -- just good ole stereo. But they image so well, I love them. Good bass. If you want thunderous bass, you can always add a subwoofer to them. [ CRAIG Dec 27, 2017 ]
These are way better. I have them and can attest to their magnificent performance. You can also check some of the high end reviews (Stereophile, Audiophile, etc. and they compare these to some of the best $10K - $50K systems that they have heard. Buy them, you won't regret it. [ Robert Dec 27, 2017 ]
A Ferrari replaces a Prius. Thats about all I need to say. [ BRUCE Dec 27, 2017 ]
Sell your DAC, get these speakers. [ Robert Dec 27, 2017 ]
No: it does have a pair of RCA jacks for analog input, but that input is converted to digital so it can do some DSP and ship the signal to the left speaker via an Ethernet cable. [ Jon Oct 22, 2017 ]
Unfortunately you can't. It's really for those ho want the all in one solution. If you have a better standalone DAC, you're better off with the passive version. [ Ronnie Oct 21, 2017 ]
Yes....you need a DAC with RCA out and then input that signal to KEF's RCA input. This will bypass the KEF DAC. [ HARVEY Oct 21, 2017 ]
Yes you can, they have analog rca inputs, but know that they will be digitized again within the speaker. I have read online that some people did like/prefer the sound vs. the speaker as a stand-alone. But I will tell you the converters and electronics are so good in them, you probably won't want too. Highly recommend. [ Kevin Oct 21, 2017 ]
No, however you would not want to. I had the Auralic Vega DAC ($3,500) and sold it together with Focal Speakers. Even if your DAC is better the sound coming out of the speakers likely would not be. There are other factors. For one the Built in DAC has a built in DSP to correct for phase shifts. An external dac does not. Secondly, the short digital wiring from the internal DAC to the speaker Amp has much less Jitter than the output wire of an additional external wiring would add. If you really want to get the best sound possible out of these things there are some critical things you could do that would improve the sound tremendously. Get the ISO accoustic 150 (newer delux version) stands. Secondly get IFI micro iUSB3.0 (and for further 10% improvemnt the Igalvanic too). Use shortest possible usb 3.0 cables. No more than 3.0 feet. Amazon Basic is really good. A great 2 head USB2.0 cable is the Pangea premium in comes in .5 meters 199. If it is a computer based system get the Dirac Live software to calibrate the system. MiniDSP sells a calibration mic for under $100 that is really good for the price. Get a good stand with decent weight. If you do get the calibration system you can change the ethernet cable the speaker is using to Audioquest Cinnamon (this will not be advisable unless you are calibrating the system since the cable with the speaker goes with the current settings characteristic of the speakers). If you sold your DAC and did all that your system would be better by another dimension. [ Aaron Oct 21, 2017 ]
No you can't. I would consider buying the plain ls50s if you already have your own DAC. [ Vikram Oct 21, 2017 ]
We don't have a way to track the blemishes and link them with each product (sometimes we have more than one in scratch & dent stock). If its important for the item to not have a blemish that can be seen, I recommend looking for open box items as those still have a price break over the brand new price but don't have any cosmetic blemishes My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=101 [ Paul Oct 16, 2017 ] Staff
I have the same issue, though it would sometimes work for a while and then the error. My fix was to switch to Spotify, which always works. [ Robert Aug 01, 2018 ]
I just ran update and the following screen showed up: MCU New version: 3.0 Current Version: 2.5 DSP Already up to date Current Version: 0.5.4 WIFI New Version: 2.0 Current Version: 1.2 The update went fine. It took like 10 minutes. I don't see any problem after update. I actually like it. I can control these speakers from my iPhone through remote app. [ Du Jul 19, 2018 ]
None so far, played with different configurations and used for 20/30 hours. Everything seems to be working fine and the app seems very functional. [ Vincenzo Jul 19, 2018 ]
I did it, everything seemed to go well. Nothing really to complain about. I just wished everything was in one app, instead of two now. [ DANIEL Jul 19, 2018 ]
5 answers Hi, I just bought the LS50W. In the app, what do stand/desk, distance from wall/table actually change in audio terms (treble, mids etc)? I understand "lively room" means cutting down treble, and a large room size setting extends more bass . Also, if I want more mids, how do i adjust in app? Also, my ls50w sits on an iso acoustics aperta stands which sits on a desk. Should I set it to "stand or desk" in this case? Thanks a lot. [ Waychai Jul 12, 2018 ]
Hi Waychai. Congrats on your new speakers and the iso acoustics stands are fantastic and a "must have" accessory. I would just go to the experience/advanced tab and turn on the stand AND desk tabs and experiment with them. On a desk, you might want them both on and start attenuating around 3db each as a start. Bass can get really boomy and tubby on a desk, especially when placed close to a rear wall. Trust your ears. ?? Try doing that AND adding a bass boost if you wish. That should help to keep your midrange clean. [ Kevin Jul 16, 2018 ]
You'll want to take a look at the excellent videos on the KEF USA site to find the answeres to your set up and adjustment questions. Take a look at the LS50 videos of the KEF USA site I don't have an answerer to your question about the use of the Apreta stands, suggest you let your ears decide which sounds best to you. [ PAUL M Jul 16, 2018 ]
Low frequency response is altered by the desk/stand and distance from a rear wall. The LS50 Wireless compensates for the effect close boundries. Mid frequencies are not altered, but the midrange might seem more correct with proper low frequency attenuation. The high frequency compensation corrects for shortwave length effects of room acoustic no matter where the speaker is placed. Proper high frequency compensation can also improve the midrange impression. [ Ed Jul 16, 2018 ]
Personally I use it for my computer system. I leave everything at default and adjust through DIRAC LIVE calibration program that I have in my Computer. External calibration will provide best results. If you do not have an external calibration you can adjust it in the software app. Use the EXPERT mode. I would start by leaving desk and Wall mode off. There you can adjust treble and Bass separately. If you feel you need more adjustment try putting desk mode on and readjusting treble and bass. Again this can help get you a better results but it will absolutely not come close to a real external calibration product. [ Aaron Jul 16, 2018 ]
I'm not entirely sure if the settings or advanced settings have a provision to set the midrange. But I find the best way to manipulate the settings is to just experiment with all of them and see what you like. You can definately hear a difference. I interprate the speaker stands setting as deliberate and standing in free space. As long as your higher off the desk and somewhat away from the rear wall, you are in free space and I interpret that as the stands setting. But again just listen for yourself. At the end of the day in home audio, if you like the sound then just enjoy it. [ Rob Jul 16, 2018 ]
I can't answer your question because I am using the default setting and too lazy to try just to answer your question. However it's very hard to believe switching L/R speakers actually affect sound quality. [ Du Jul 19, 2018 ]
Sorry to hear about that! If you purchased your KEF LS50 speakers from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If not, you may want to check out KEF's support site for more details: http://us.kef.com/support [ Larry Jun 23, 2018 ] Staff
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. [ Krissy Jun 23, 2018 ] Staff
3 answers Is the new revision with serial number greater than ls50w06256 out yet? According to kef site faq#12, LS50W with serial number greater than ls50w06256 together with Apr 16, 2018 firmware will have extended support for Infrared remote commands. (Old 8 IR commands, New, 19 IR commands). Specifically, it will support direct input select (i.e. IR command for Aux, Opt etc, no need to keep pressing "next input") [ WannaBuy_LS50W May 16, 2018 ]
You've already answered your own question, YES. [ Chris Jun 07, 2018 ]
Sorry, I'm unable to answer your question. Suggest you contact KEF directly to determine what is currently shipping. [ PAUL M Jun 06, 2018 ]
The short and sweet is to call KEF Customer support with your serial number in hand and talk to them. [ Robert Jun 06, 2018 ]
I have to manually turn on and off. If there is a way to do sense power transition automatically I haven't found it. [ Du Jul 19, 2018 ]
I only know the answer for using wifi as the input source. Yes, you will have to turn on the LS50W manually for that input source. The LS50W doesn't have the feature to wake up by wifi connection request. As for shut down, it will shut down after not using for a while. I don't know how long. [ Lennart Oct 28, 2017 ]
No. It doesn't have auto on. But there is a time out . The longest time out is 60 minutes of no input then it will automatically turn off. Neither the IOS app nor the Android app for LS50W can wake up the speakers. Obviously, you can use the remote to turn it on. As a workaround I used a Logitech Smart Hub (with built-in IR blaster). Then I use the Logitech harmony app from my phone to turn on the LS50W. With the Smart Hub, you can also link it to Alexa/Echo then you can use voice input to turn on LS50W. [ bschai Oct 27, 2017 ]
Though most powered speaker systems like this will remember the previous source selected, there's no specific info that details the input source when the Kef LS50 speakers are initially powered on. If you would like to find that out for certain, you may want to contact Kef's Support directly--you can reach them by phone at 732-683-2356 or check out their support site: http://us.kef.com/support [ Larry Apr 10, 2017 ] Staff