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17.3  Troubleshooting

  1. What should I do to set up LS50 Wireless II to another network?

• 

A factory reset is necessary. This will clear the previous network settings and all EQ 
and system preferences. For this purpose, press and hold the Reset button (R) on the 
back panel until the LED light above the button blinks.

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

• 

Wait for about 30–40 seconds for the speakers to be visible on the speaker list.

• 

If you still cannot see the speakers, make sure your mobile device, the speakers and 
the router are within line of sight (the closer the better). 

• 

The speakers broadcast on Channel 2 (2.4 GHz band). If your router overlaps this 
channel, it may cause issues with discoverability and connection. Go to your router 
settings and configure the 2.4 GHz channel to avoid overlapping with Channel 2. 

  3. How do I report a bug or an issue?

• 

In the KEF Connect App, go to “Settings” > “Support”. To let us better understand the 
bug or issue, please provide a descriptive report.

  4. There is no sound from both speakers.

• 

Check if the speakers are already turned on and not muted. 

• 

Make sure you are playing the correct set of speakers and have selected the correct 
sound source.

• 

Check the volume level, you may need to turn up the volume.

  5. There is dropout from both speakers.

• 

Check if there is a network problem or you need to set up the speakers to a less 
crowded router channel.

• 

Change the audio streaming quality in the KEF Connect App.

  6. There is no sound from the Secondary Speaker.

• 

Make sure the Secondary Speaker is connected to power. 

• 

Check if the connection between the two speakers is lost (Source and Volume Down 
buttons on the top panel of the Primary Speaker are blinking). 

If the connection is lost, short press the P/S pairing button (P) on the back panel of 
the Primary Speaker to re-establish the connection. Wait a while until the connection 
is established. 

Note: 

Do not press the button for more than 1 second.

• 

If the problem persists, connect the speakers with the inter-speaker cable and turn on 
Cable Mode in the KEF Connect App.

Summary of Contents for LS50W2RD

Page 1: ...Table of Contents Setting Up Wi Fi Streaming Using KEF Connect App FAQ and Troubleshooting User Manual LS50 Wireless II...

Page 2: ...nection and Control Interface 17 5 1 Front Panel 17 5 2 Back Panel 18 5 3 Bottom Panel 20 5 4 Top Panel 21 5 5 Remote Control 22 5 6 KEF Connect App 23 6 Wi Fi Streaming 24 6 1 Wireless Streaming Prot...

Page 3: ...Playback with Auxiliary Input 45 13 1 Auxiliary Cable Connection 45 13 2 Selecting Auxiliary Mode 46 13 3 Playback Controls 46 14 Using KEF Connect App 47 14 1 Home 47 14 1 1 Overview 47 14 1 2 Editi...

Page 4: ...Volume 74 14 8 5 Balance Control 74 14 9 Firmware Upgrade 75 14 9 1 Automatic Firmware Update after Onboarding 75 14 9 2 Automatic Firmware Check 75 14 9 3 Manual Firmware Update 76 14 10 Application...

Page 5: ...nd reproducing them to the highest possible quality This legacy continues today with the LS50 Wireless II our compact yet powerful speaker system for the digital music era The new KEF LS50 Wireless II...

Page 6: ...s to the safety information Failure to do so may result in personal injury or damage to the speakers Retain the user manual and safety information for further use Make sure to include the user manual...

Page 7: ...speaker cones 1 set 1 1 2 3 1 Take the speakers and accessories out of the packaging 2 Remove the red protective stickers and tabs on the speakers 3 Check to make sure that all parts are included name...

Page 8: ...uirements of your Router Network standard IEEE 802 11a b g n ac IPv4 IPv6 Frequency band Dual band 2 4 GHz 5 GHz A 5 GHz Wi Fi network is recommended for stable streaming especially for hi resolution...

Page 9: ...nectors A on the back panels of the Primary and Secondary Speakers 2 Connect the power plugs into the power sockets outlets After successful power connections the Wi Fi icon on the top panel of the Pr...

Page 10: ...Fi network 1 Search KEFConnect in the App Store or Google Play Store to download and install the KEF Connect App on your iOS or Android device 2 Launch the KEF Connect App on your device and create a...

Page 11: ...rs with the check mark are ready for use This icon will show for speakers already onboarded or directly connected to the network via a cable 4 Select your local Wi Fi network Press Next to begin the o...

Page 12: ...by The speakers with the warning sign are not set up yet The speakers with the check mark are ready for use 5 Tap Open Google Home to proceed If your mobile device does not have Google Home you will b...

Page 13: ...o back to the KEF Connect App to start using the speakers The Wi Fi icon on the top panel of the Primary Speaker is solid white when the speakers are successfully connected After successful connection...

Page 14: ...your mobile device 3 Allow the app to access your device s location when requested 4 Tap Choose a Wi Fi network 5 Select your local Wi Fi network and then tap OK Step 3 5 6 Input the password of your...

Page 15: ...ting The Wi Fi icon on the top panel of the Primary Speaker is solid white when the speakers are successfully connected After successful connection you may be prompted if there is a new firmware updat...

Page 16: ...d the listener will depend on how far the Primary Speaker and the Secondary Speaker are separated or vice versa Try to keep the same distance to the listener to form an equilateral triangle A B C A B...

Page 17: ...17 Table of Contents Setting Up Wi Fi Streaming Using KEF Connect App FAQ and Troubleshooting 5 Connection and Control Interface 5 1 Front Panel Primary Speaker Secondary Speaker IR receiver...

Page 18: ...x through an optical cable C Coaxial input jack Plays audio input from a source e g audio player through a coaxial cable X Auxiliary input jack Plays audio input from a source e g turntable with phono...

Page 19: ...d device will be disconnected T Primary Secondary connection port Connects the Primary Speaker and Secondary Speaker with the inter speaker cable S Subwoofer output jack Connects a subwoofer to the sp...

Page 20: ...pping on a hard surface Additionally four threaded holes M8 1 5 are also available for mounting on a stand remove the rubber feet first before mounting For the best sound performance and cable managem...

Page 21: ...EF Connect App FAQ and Troubleshooting 5 4 Top Panel Control buttons and mode indicators are found on the top panel of the Primary Speaker Wi Fi Volume up Bluetooth TV Optical Coaxial Auxiliary Mute V...

Page 22: ...ry compartment before use To do so slide open the battery compartment cover on the back and insert the batteries into the compartment according to the polarity Close the battery compartment cover when...

Page 23: ...eakers switch sound sources and access and play back your streaming music and music stored in media server Turn on off the speakers and switch sources Shortcuts to music content music streaming servic...

Page 24: ...treaming protocols 6 1 1 AirPlay 2 AirPlay 2 lets you share audio output from Apple devices to the speakers 1 Start music or video playback on your iOS device 2 For music streaming tap the AirPlay ico...

Page 25: ...s Chromecast enabled you can stream audio output from the device to the speakers 1 Start music or video playback on your Chromecast enabled device 2 In the Google Home App tap KEF LS50 Wireless II or...

Page 26: ...to create a searchable surfable magazine about your music The speakers are certified Roon Ready For more information on Roon visit roonlabs com 1 Enable the speakers in the Audio menu Note KEF LS50 Wi...

Page 27: ...ast streaming service that gives you access to millions of songs and other content from artists all over the world The speakers are ready for Spotify Connect 1 Browse and select music to play in the S...

Page 28: ...services QPlay lets you stream music directly from the QQ Music App The speakers are ready for the QPlay feature 1 To stream music launch the QQ Music App and enable QPlay in the settings 2 Browse and...

Page 29: ...c videos with exclusive content and special features on music The speakers are ready for the TIDAL Connect feature for music streaming 1 To stream music select the content you want to play in theTIDAL...

Page 30: ...stream music to the speakers 6 1 5 2 Deezer Deezer is an online music streaming service It allows users to listen to music content from a wide range of record labels on various devices online or offl...

Page 31: ...App to play hi resolution audio A valid Hi Fi tier subscription is required 6 1 5 6 Internet Radio The KEF Connect App offers access to thousands of Internet radio stations from all over the world of...

Page 32: ...ard to music media apps on your mobile devices App Wireless streaming protocol AirPlay 2 Chromecast ROON Ready Music streaming app native protocol KEF Connect App Bluetooth Spotify Spotify Connect TID...

Page 33: ...network select the pairs for playback of the same audio output at the same time You can control the volume of the speakers individually or together as a group Note AirPlay speakers are not compatible...

Page 34: ...ming Using KEF Connect App FAQ and Troubleshooting 4 Tap each device including the sets of speakers you want to add to the group A check mark will appear next to each device you have selected 5 Tap Ne...

Page 35: ...house Note that Zones can only be grouped with other zones of the same type e g RAAT AirPlay etc 1 To group zones select the zone you are controlling in desktop and tablet interface by clicking the Zo...

Page 36: ...tracks controlling the volume level while your iOS mobile device is streaming music to the speakers Hey Siri Play some music on the LS50 Wireless II 8 2 Google Assistant You can use Google Assistant...

Page 37: ...ol You can assign the Bluetooth mode as a second wake up source to turn on the speakers automatically when there is audio input through Bluetooth connection See chapter Power Saver Second Wake Up Sour...

Page 38: ...the list of available devices to pair When Bluetooth pairing is done the Bluetooth icon will stay lit The speakers remember your last paired Bluetooth device Once Bluetooth mode is selected the speake...

Page 39: ...CEC HDMI CEC allows the use of the television remote control to adjust the volume of the speakers 10 1 HDMI Cable Connection Connect the HDMI output port of your TV and the TV port V on the back pane...

Page 40: ...If no HDMI cable is conected to the speakers andTV mode is selected theTV icon will keep pulsing TheTV icon is lit when HDMI connection is established You can assign TV mode as a second wake up source...

Page 41: ...speakers through an optical cable The speakers must always be first connected to your local network before optical connection 11 1 Optical Cable Connection Connect the optical output jack of your dev...

Page 42: ...peaker Or press the source button on the remote control The OPT icon is lit when Optical mode is selected You can assign Optical mode as a second wake up source to turn on the speakers automatically w...

Page 43: ...devices with coaxial output e g DVD CD player to the speakers through a coaxial cable The speakers must always be first connected to your local network before coaxial connection 12 1 Coaxial Cable Co...

Page 44: ...ker Or press the source button on the remote control The CX icon is lit when Coaxial mode is selected You can assign Coaxial mode as a second wake up source to turn on the speakers automatically when...

Page 45: ...mm audio output e g turntables computers portable music players to the speakers through an audio cable The speakers must always be first connected to your local network before auxiliary connection 13...

Page 46: ...peaker Or press the source button on the remote control The AUX icon is lit when Auxiliary mode is selected You can assign Auxiliary mode as a second wake up source to turn on the speakers automatical...

Page 47: ...ings turn on off the speakers switch sound sources and access and play back your music streaming services 14 1 Home 14 1 1 Overview Turn on off the speakers and switch sources Shortcuts to music conte...

Page 48: ...of frequent or less frequent use 1 Tap the edit icon at the top right of the app 2 Tap the or symbols to show or hide a tile 3 Tap the edit icon at the top right of a tile 4 Tap the or symbols to sho...

Page 49: ...Up Wi Fi Streaming Using KEF Connect App FAQ and Troubleshooting 14 3 Music Content The KEF Connect App allows you to access and play back music from your music streaming services as well as Internet...

Page 50: ...App FAQ and Troubleshooting 14 3 1 Playing Music from Music Streaming Services 14 3 1 1 Amazon Music 1 To stream music tap Amazon Music under Music in the Cloud in the KEF Connect App 2 Login to your...

Page 51: ...p Wi Fi Streaming Using KEF Connect App FAQ and Troubleshooting 14 3 1 2 Deezer 1 To stream music tap Deezer under Music in the Cloud in the KEF Connect App 2 Login to your Deezer account 3 Browse and...

Page 52: ...Up Wi Fi Streaming Using KEF Connect App FAQ and Troubleshooting 14 3 1 3 Qobuz 1 To stream music tap Qobuz under Music in the Cloud in the KEF Connect App 2 Login to your Qobuz account 3 Browse and p...

Page 53: ...fy Through the KEF Connect App you can be prompted to the Spotify App on your device to stream music to the speakers See chapter Spotify Connect 14 3 1 5 TIDAL 1 To stream music tap TIDAL under Music...

Page 54: ...Internet Radio 1 To access Internet radio tap Radio stations under Live Stream in the KEF Connect App 2 Browse and play a radio station to start streaming 14 3 1 7 Podcast 1 To access podcast content...

Page 55: ...at these features may not be available to all music sources and there may be slight differences in the control interface 14 3 2 1 Playback Screen Previous next Play pause Track scroll Options Repeat H...

Page 56: ...en tap the favourite icon to select or deselect an item music podcast radio station as favourites Alternatively tap the option icon next to an item e g track album playlist or press and hold on an ite...

Page 57: ...nt playing track The queue is not permanent and cannot be saved Adding a Track to the Queue 1 From the playback screen tap the option icon 2 Select Add to Queue Depending on your selections you can al...

Page 58: ...ack sequence press and hold the three bars on the right hand side of a track and then drag the track up or down the queue 2 To remove a track from the queue tap the edit icon at the top right 3 Select...

Page 59: ...ce tap Playlists in the main menu Creating a Playlist 1 In the current music source tap Playlists in the main menu 2 Tap Create new playlist 3 Create a name for the playlist and then tap Create Adding...

Page 60: ...Connect App FAQ and Troubleshooting Editing a Playlist 1 In the playback screen of the track to be removed tap the option icon 2 Tap Remove from playlist Deleting a Playlist 1 In the playlist tap the...

Page 61: ...dio performance apply sound settings according to your listening area 14 4 1 Normal Mode 1 In the KEF Connect App tap the EQ settings icon at the bottom of the Home screen 2 Tap Add new profile 3 Sele...

Page 62: ...on On a stand or on a desk Distance from the front edge of the table on a desk only 50 cm to 0 cm Distance to the wall 10 cm to 50 cm How is your room Damped Moderate Lively Damped Large furniture thi...

Page 63: ...20 m2 20 40 m2 40 m2 Subwoofer is plugged in On Off If a subwoofer is plugged in set up the subwoofer volume and speaker subwoofer balance 6 Tap Save when the settings are done 14 4 2 Expert Mode 1 I...

Page 64: ...references in greater precision The settings include Desk Mode On Off 10 0 dB to 0 0 dB Wall Mode On Off 10 0 dB to 0 0 dB TrebleTrim 4 0 dB to 4 0 dB Phase Correction On Off Bass Extension Less Stand...

Page 65: ...d to reduce the muting effect or move towards lively to tame harshness How large is your room Expert Mode Bass Extension This setting adjusts the bass extension of the speakers The larger the room sel...

Page 66: ...the EQ settings icon at the bottom of the Home screen 2 Tap Default and then select a sound profile to apply to the speakers The profiles with a star icon are created in Expert mode 14 4 4 Renaming a...

Page 67: ...le of Contents Setting Up Wi Fi Streaming Using KEF Connect App FAQ and Troubleshooting 14 4 5 Deleting a Sound Profile 1 In the selected EQ profile tap the option icon at the top right 2 Tap Delete p...

Page 68: ...oting 14 5 Profile This menu allows you to edit your personal details account name and profile picture of your registered user account 1 In the KEF Connect App tap the Setting icon at the bottom of th...

Page 69: ...e for selection 1 In the KEF Connect App tap the Setting icon at the bottom of the Home screen 2 Tap the name of the connected speakers 3 Select another pair of speakers for control and streaming Not...

Page 70: ...speakers and disconnect the speakers from the KEF Connect App 1 In the KEF Connect App tap the Setting icon at the bottom of the Home screen 2 Tap the name of the connected speakers 3 Tap the info ico...

Page 71: ...setting determines how long ECO 20 30 or 60 mins the speakers will remain idle before automatically entering Standby Mode If never is selected the speakers must be manually turned off 14 7 2 Power Sav...

Page 72: ...de You can connect the Primary Speaker and Secondary Speaker with the provided inter speaker cable through the To L R connection ports on the back panels of the speakers Once the cable is connected en...

Page 73: ...8 1 Volume Display Setting This setting allows you to configure how the volume control should be displayed None No volume control will be displayed during playback Slider The volume control will be d...

Page 74: ...cing conflicts with other music streaming apps over Wi Fi connection 14 8 3 Speaker Volume Sensitivity This setting allows you to configure the number of volume steps for each single press of the phys...

Page 75: ...matic Firmware Check The speakers check the server every 4 hours if a new firmware update is available If a firmware is available it will check if the firmware update is compulsory or not If a firmwar...

Page 76: ...ng 14 9 3 Manual Firmware Update This menu allows you to manually check for firmware updates To access this menu 1 In the KEF Connect App tap the Setting icon at the bottom of the Home screen 2 Tap Sp...

Page 77: ...setting for the best audio quality The highest quality depends on the music streaming service and your subscription High CD quality Select this setting when the speakers are in a crowded network and e...

Page 78: ...ing KEF Connect App FAQ and Troubleshooting 14 10 4 Analytics Improve App Speaker This setting allows the KEF Connect app to anonymously send improvement analytics to KEF We recommend this setting is...

Page 79: ...es To access this menu 1 In the KEF Connect App tap the Setting icon at the bottom of the Home screen 2 Tap Support 3 Select the type of support you need and proceed as instructed on the screen 4 When...

Page 80: ...speakers in water or other liquids NOTICE Risk of damage Improper handling of the speakers may result in damage Do not use any aggressive cleaners brushes with metal or nylon bristles or sharp or met...

Page 81: ...be disposed of as household waste Please dispose of your speaker in accordance with the regulations in force in your city or county This ensures that old appliances are recycled in a professional man...

Page 82: ...tor to configure the network to allow full functionality if using these kinds of networks LTE routers mobile hotspots will work but may also consume a significant amount of battery power and mobile da...

Page 83: ...e already paired at the factory If you do not hear any sound from the Secondary Speaker see chapter Troubleshooting 8 What is the purpose of the ethernet cable in the packaging box Use this inter spea...

Page 84: ...romecast ROON Ready Music streaming app native protocol KEF Connect App Bluetooth Spotify Spotify Connect TIDAL TIDAL Connect QQ Music QPlay Apple Music Amazon Music Deezer Qobuz Internet radio Audio...

Page 85: ...s if I prefer to adjust the volume on an external equipment preamplifier streamers multi room systems rather than through the KEF Connect App In the KEF Connect App 1 In Settings go to Volume change V...

Page 86: ...sue In the KEF Connect App go to Settings Support To let us better understand the bug or issue please provide a descriptive report 4 There is no sound from both speakers Check if the speakers are alre...

Page 87: ...acturers may name this connection differently e g Anynet for Samsung Simplink for LG please check the user manual of yourTV on how to turn on HDMI connection for yourTV Once the HDMI CEC connection is...

Page 88: ...and expanding our database for radio stations and podcasts Please use the Support function in the KEF Connect App and send us the RSS link of the website After verification we will add it to our datab...

Page 89: ...The speakers are trying to connect to a Wi Fi network Wi Fi icon is blinking white and amber The speakers are connected to a Wi Fi network Wi Fi icon is solid white The speakers are unable to connect...

Page 90: ...the Primary Secondary connection ports T on the speakers Source button Mute button and Volume Down button are blinking Firmware update is in progress Do not unplug the power cables until the firmware...

Page 91: ...ower cables from both speakers 2 Wait approximately 30 minutes 3 Plug the power cables back to both speakers to resume normal operation If the problem persists please contact your KEF dealer Note Syst...

Page 92: ...r per speaker LF 280 W HF 100 W 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 Blue...

Page 93: ...A service RJ45 Ethernet interspeaker Output RCA Subwoofer 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 Metama...

Page 94: ...registered trademark of Access Industries Google Play store and Chromecast are registered trademarks of Google LLC Qobuz is a registered trademark of Xandrie SA QQ Music is a registered trademark of...

Page 95: ...sibly to promote the sustainable reuse of material resources To dispose of your used device please use the proper collection system or contact the retailer where the product was purchased they may be...

Page 96: ...e sea level China RoHS China This product contains certain hazardous substances and can be used safely during its environmental friendly use period 10 years The product should enter into the recycling...

Page 97: ...the command codes required Code Format NEC Factory Code 0x01 Functions Function codes 1 Power on off toggle 0x40 2 Mute un mute toggle 0x20 3 Play Pause 0x18 4 Forward 0x52 5 Next source 0x58 6 Volume...

Page 98: ...For more support please visit kef com...

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