KEF LS50W2RD User Manual
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KEF LS50W2RD User Manual

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User Manual
LS50 Wireless II

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  • Page 1 User Manual LS50 Wireless II...

  • Page 2: Table Of Contents

    4. Setting Up LS50 Wireless II ....................8 Selecting an Appropriate Router ........................8 Connecting to Power ..............................9 Onboarding ...................................10 4.3.1 Installing the KEF Connect App .......................10 4.3.2 Using iOS Devices ............................11 4.3.3 Using Android Devices with Google Play Service ............... 12 4.3.4...
  • Page 3 12.3 Playback Controls ..............................44 13. 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 Editing the Home Screen (coming soon)...................48 14.2 Remote Control .................................48...
  • Page 4 14.4.4 Renaming a Sound Profile ...........................66 14.4.5 Deleting a Sound Profile ..........................67 14.5 Profile ....................................68 14.6 Choosing Your Speaker ............................69 14.6.1 My Speaker and Speakers Nearby ......................69 14.6.2 Speaker Info ................................70 14.7 Speaker Preferences ..............................71 14.7.1 Power Saver – Standby Mode ........................71 14.7.2 Power Saver – Second Wake-Up Source ..................71 14.7.3 Do Not Disturb –...

  • Page 5: Introduction

    Introduction Thank you for choosing KEF wireless speaker system – LS50 Wireless II. Innovation is what sets KEF apart from its competitors. For over 50 years KEF has been at the forefront of loudspeaker research and development, designing class-leading speakers that have dealt with the challenges of reproducing the latest musical formats, and reproducing them to the highest possible quality.

  • Page 6: General Information

    General Information Reading and Storing the User Manual This user manual accompanies the LS50 Wireless II speaker system (hereafter referred to as the “speakers”), and contains important information on setup and handling. Before using your speakers, read this user manual and the safety information (as a separate booklet) carefully.

  • Page 7: In The Box And Unpacking

    In the Box and Unpacking NOTICE! Risk of damage! Using a sharp knife or other pointed object to open the packaging may damage the speakers. • Be very careful when opening the packaging. Follow the instructions on the packaging to lift up the speakers from the sides to avoid damaging the Uni-Q drivers (speaker cones).

  • Page 8: Setting Up Ls50 Wireless Ii

    Setting Up LS50 Wireless II Selecting an Appropriate Router The speakers must be “onboarded” to your personal Wi-Fi network (see chapter “Onboarding”) for the best sound quality, comprehensive control and to enjoy music streaming, Technical Requirements 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 music.

  • Page 9: Connecting To Power

    After successful power connections, the Wi-Fi icon on the top panel of the Primary Speaker will blink white and amber. The speakers are now ready to be “onboarded” to your personal Wi-Fi network through the KEF Connect App (see chapter “Onboarding”).

  • Page 10: Onboarding

    KEF Connect App on your iOS* or Android** device. 2. Launch the KEF Connect App on your device and create a user account. You may log in with your existing Facebook, Google or Apple*** account, or create a new KEF account with your email address.

  • Page 11: Using Ios Devices

    1. Make sure your mobile device is connected to the network you want to onboard your speaker to. 2. Launch and login to the KEF Connect App on your mobile device. 3. Select “LS50 Wireless II” under “Speakers nearby”. The speakers with the warning sign ( ) are not set up yet.

  • Page 12: Using Android Devices With Google Play Service

    Using Android Devices with Google Play Service 1. Make sure your mobile device is connected to your local Wi-Fi network. 2. Launch and login to the KEF Connect App on your mobile device. 3. Allow the app to access your device’s location when requested.
  • Page 13 9. When the process is completed, tap “Continue”. 10. Go 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.

  • Page 14: Using Android Devices Without Google Play Service

    Using Android Devices without Google Play Service 1. Make sure your mobile device is connected to your local Wi-Fi network. 2. Launch and login to the KEF Connect App on your mobile device. 3. Allow the app to access your device’s location when requested.
  • Page 15 • 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 update available. Follow the instructions in the KEF Connect App to complete the update process.

  • Page 16: Speaker Placement And Connection

    For the best stereo experience, soundstage and stable connection, place the speakers within 8 meters apart. *The left and right channels can be swapped through the KEF Connect App. See chapter “Speaker System Options – Inverse L/R Speaker”.

  • Page 17: Connection And Control Interface

    Connection and Control Interface Front Panel Secondary Speaker Primary Speaker IR receiver...

  • Page 18: Back Panel

    Back Panel Controls and connections are found on the back panel of each speaker, marked as shown. V TV port Plays audio input from a source (e.g. ARC/eARC port of television) through an HDMI cable. O Optical input jack Plays audio input from a source (e.g. Blu-ray player, cable box) through an optical cable.
  • Page 19 B Bluetooth pairing button Enables Bluetooth pairing. The speakers will be ready to pair with a new device. Any Bluetooth connected device will be disconnected. T Primary/Secondary Connects the Primary Speaker and Secondary connection port Speaker with the inter-speaker cable. S Subwoofer output jack Connects a subwoofer to the speakers through an RCA cable.

  • Page 20: Bottom Panel

    • 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 management, use the KEF S2 speaker stands. WARNING! Be aware of the potential hazards from tipping or knocking the speakers off the stands...

  • Page 21: Top Panel

    Top Panel Control buttons and mode indicators are found on the top panel of the Primary Speaker. Mode indicator Bluetooth Optical Auxiliary Wi-Fi Coaxial On/off Mute Volume up Source Volume down Control button...

  • Page 22: Remote Control

    Remote Control On/off button Mute button Volume up button Previous source button Next source button Volume down button Play/pause button Previous button Next button • Insert two AAA batteries into the battery 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 (+/–).

  • Page 23: Kef Connect App

    KEF Connect App The KEF Connect App allows you to set up the speakers, apply sound settings, turn on/ off the speakers, switch sound sources, and access and play back your streaming music and music stored in media server. Latest news and stories from KEF...

  • Page 24: Wi-Fi Streaming

    ) in the playback screen and then tap the AirPlay icon ( 3. Select “KEF LS50 Wireless II” (or the name you have created for the speakers) from the selection menu to start streaming. The availability for streaming depends on the app compatibility.

  • Page 25: Chromecast

    If your device is 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 the name you have created for the speakers). 3. Tap “...

  • Page 26: Roon Ready (Coming Soon)

    Note: KEF LS50 Wireless II will be Roon Ready soon. 2. To stream music, click the “Zone Picker” next to volume at the footer of Roon and then select “KEF LS50 Wireless II” (or the name you have created for the speakers) from the device list.

  • Page 27: Music Streaming Apps Native Protocols

    1. Browse and select music to play in the Spotify App. 2. Tap the device icon ( ) at the bottom of the playback screen. 3. Select “KEF LS50 Wireless II” (or the name you have created for the speakers) from the selection menu to start streaming. [Step 1–3]...

  • Page 28: Qplay

    1. To stream music, launch the QQ Music App and enable QPlay in the settings. 2. Browse and play music. 3. Tap the QPlay icon ( ) on the playback screen. 4. Select “KEF LS50 Wireless II” (or the name you have created for the speakers) from the device list to start streaming.

  • Page 29: Tidal Connect

    ( ) in the “Now Playing” screen. 2. Select “KEF LS50 Wireless II” (or the name you have created for the speakers) from the list of nearby devices to pair with the Tidal Connect App to start streaming.

  • Page 30: Kef Connect App Streaming

    You can access your Qobuz account through the KEF Connect App to stream music to the speakers. 6.1.5.4 Spotify Through the KEF Connect App, you will be prompted to open the Spotify app on your device in order to stream music to the speakers. See chapter “Spotify Connect”.

  • Page 31: Tidal

    The KEF Connect App offers access to thousands of Internet radio stations from all over the world, offering music, news and discussion. 6.1.5.7 Podcast The KEF Connect App provides access to a wide range of podcasts covering a huge number of genres and topics. 6.1.6 UPnP Playback You can play compatible music files stored in the music library of a connected media server (e.g.

  • Page 32: Tips On Choosing Streaming Protocols

    Tips on Choosing Streaming Protocols Recommendations for the best wireless streaming options with regard to music/media apps on your mobile devices. Wireless streaming protocol AirPlay 2 Chromecast ROON Music Bluetooth Ready streaming Connect app native protocol Spotify Spotify – Connect –...

  • Page 33: Multi-Room Streaming

    Multi-Room Streaming AirPlay 2 Apple Airplay 2 can extend the speakers to become part of a multi-room wireless music system which can be controlled with iOS devices. If you have more than one pair of AirPlay 2 speakers connected to the same network, select the pairs for playback of the same audio output at the same time.
  • Page 34 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 “Next” 6. Enter a name for your group. 7. Tap “Save”.

  • Page 35: Roon

    ROON With Roon Ready certification, the speakers are compatible with Roon’s multi-room streaming functionality. Roon supports “Zone Grouping”, or synchronizing audio playback in several zones within your house. Note that “Zones” can only be grouped with other zones of the same type (e.g.

  • Page 36: Voice Control Over Mobile Device

    Voice Control Over Mobile Device Siri You can use Siri to control playback (e.g. skipping 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. Google Assistant You can use Google Assistant to control playback (e.g.

  • Page 37: Playback With Bluetooth

    Bluetooth connection. Selecting Bluetooth Mode • In the KEF Connect App, tap the Bluetooth button ( ) to switch to Bluetooth mode. • Alternatively, press the source button on the top panel of the Primary Speaker; • Or, press the source button on the remote control.
  • Page 38 KEF Connect App to disconnect the paired device. 2. Turn on the Bluetooth feature of your device and select “KEF LS50 Wireless II” (or the name you have created for the speakers) from the list of available devices to pair.

  • Page 39: Playback With Hdmi Earc Input

    Playback with HDMI eARC input The speakers are compatible with HDMI eARC (enhanced Audio Return Channel) output from your TV for integrated control through a single HDMI cable. The speakers must always be first connected to your local network before HDMI connection. The speakers are also backward compatible with ARC and HDMI CEC.

  • Page 40: Selecting Tv Mode

    10.2 Selecting TV Mode • In the KEF Connect App, tap the TV Mode button (TV) to switch to TV Mode. • Alternatively, press the source button on the top panel of the Primary Speaker; • Or, press the source button on the remote control.

  • Page 41: Playback With Optical Input

    Playback with Optical Input You can connect your devices with optical output (e.g. TV and game consoles) to the 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 device and the optical input jack (O) on the back panel of the Primary Speaker via an optical cable.

  • Page 42: Selecting Optical Mode

    11.2 Selecting Optical Mode • In the KEF Connect App, tap the Optical Mode button (OPT) to switch to Optical Mode. • Alternatively, press the source button on the top panel of the Primary Speaker; • Or, press the source button on the remote control.

  • Page 43: Playback With Coaxial Input

    Playback with Coaxial Input You can connect your 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 Connection Connect the coaxial output jack of your device and the coaxial input jack (C) on the back panel of the Primary Speaker via a coaxial cable.

  • Page 44: Selecting Coaxial Mode

    12.2 Selecting Coaxial Mode • In the KEF Connect App, tap the Coaxial button (CX) to switch to Coaxial mode. • Alternatively, press the source button on the top panel of the Primary Speaker; • Or, press the source button on the remote control.

  • Page 45: Playback With Auxiliary Input

    Playback with Auxiliary Input You can connect your devices with 3.5 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. 13.1 Auxiliary Cable Connection Connect the audio output jack of your device and the auxiliary input jack (X) on the...

  • Page 46: Selecting Auxiliary Mode

    13.2 Selecting Auxiliary Mode • In the KEF Connect App, tap the Auxiliary Mode button (AUX) to switch to Auxiliary mode. • Alternatively, press the source button on the top panel of the Primary Speaker; • Or, press the source button on the remote control.

  • Page 47: Using Kef Connect App

    Using KEF Connect App The KEF Connect App allows you to set up the speakers, apply EQ settings, turn on/ off the speakers, switch sound sources and access and play back your music streaming services. 14.1 Home 14.1.1 Overview Latest news and stories from KEF...

  • Page 48: Editing The Home Screen (Coming Soon)

    14.1.2 Editing the Home Screen (coming soon) You may edit the Home screen to show or hide tiles (e.g. Music in the Cloud) or buttons that are of frequent or less frequent use. 1. Tap the edit icon ( ) at the top right of the app. 2.

  • Page 49: Music Content

    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 radio stations and podcasts.

  • Page 50: Playing Music From Music Streaming Services

    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 Amazon Music account. 3. Browse and play music to start streaming.

  • Page 51: Deezer

    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 play music to start streaming.

  • Page 52: Qobuz

    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 play music to start streaming.

  • Page 53: Spotify

    See chapter “Spotify Connect”. 14.3.1.5 TIDAL 1. To stream music, tap “TIDAL” under “Music in the Cloud” in the KEF Connect App. 2. Login to your TIDAL account. 3. Browse and play music to start streaming.

  • Page 54: Internet Radio

    14.3.1.6 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 contents, tap “Podcasts” under “Live Stream” in the KEF Connect App.

  • Page 55: Playback Controls

    14.3.2 Playback Controls The below features are available to control playback or behaviour. Please note that 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 Hide playback screen Queue Favourites Track metadata...

  • Page 56: Favourites

    14.3.2.3 Favourites • Selecting or Deselecting Favourites In the playback screen, 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 item and then select “Add to Favorites”...
  • Page 57 14.3.2.4 Play Queue Adding a track to the queue means the track will be played after the current 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.
  • Page 58 • Editing the Queue 1. To edit the playback 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.

  • Page 59: Playlists

    14.3.2.5 Playlists A playlist is a list of tracks that can be played back in the preferred sequential order. Playlists can be saved for future listening. • Accessing the Playlists In the current music source, tap “Playlists” in the main menu. • Creating a Playlist 1.
  • Page 60 • 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 option icon ( ) at the top right corner. 2.

  • Page 61: Equalisations

    Equalisations For the best audio 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. Select “Normal mode”.
  • Page 62 • Installation location: 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, thick carpet and heavy curtains Moderate: Medium furniture, thinner carpet or rug, some curtains and features on walls...

  • Page 63: Expert Mode

    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. In the KEF Connect App, tap the EQ settings icon ( ) at the bottom of the Home screen. 2. Tap “Add new profile”. 3. Select “Expert mode”.
  • Page 64 5. The Expert Mode lets you configure the EQ preferences 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) • Treble Trim (-4.0 dB to 4.0 dB) • Phase Correction (On/Off) • Bass Extension (Less / Standard / Extra) • High-Pass Frequency (On/Off, 50 Hz to 120 Hz) • Sub Out Low-Pass Frequency (40 Hz to 250 Hz)
  • Page 65 Understanding the EQ Settings On a desk/distance from the front edge of the table (Expert Mode: Desk Mode): This setting adjusts the “presence” region (170 Hz +/- 1 octave). Too much causes a muddy sound, while a lack of presence makes the sound distant and empty.

  • Page 66: Selecting A Sound Profile (Coming Soon)

    14.4.3 Selecting a Sound Profile 1. In the KEF Connect App, tap 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.

  • Page 67: Deleting A Sound Profile

    14.4.5 Deleting a Sound Profile 1. In the selected EQ profile, tap the option icon ( ) at the top right. 2. Tap “Delete profile”.

  • Page 68: Profile

    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 the Home screen. 2. Tap “View profile”.

  • Page 69: Choosing Your Speaker

    14.6.1 My Speaker and Speakers Nearby This menu allows the KEF Connect App to switch to another pair of speakers for control and streaming. All speakers must first be set up through the same KEF Connect App before they are available for selection.

  • Page 70: Speaker Info

    2. Tap the name of the connected speakers. 3. Tap the info icon ( ) next to the name of the speakers. 4. Check the MAC address, IP address and firmware version of the speakers. You can also rename the speakers or forget the speakers (disconnect them from the KEF Connect App).

  • Page 71: Speaker Preferences

    14.7 Speaker Preferences This menu allows you to configure various speaker preferences. To access this menu: 1. In the KEF Connect App, tap the Setting icon ( ) at the bottom of the Home screen. 2. Tap “Speaker preferences”. 14.7.1 Power Saver –...

  • Page 72: Do Not Disturb - Top Panel Lock

    This setting enables the buttons on the top panel of the Primary Speaker to be disabled (child lock). The LED indicators will still be on. The control of the speakers can still be performed in the KEF Connect App and on the remote control. 14.7.5 Speaker System Options –...

  • Page 73: Volume

    14.8 Volume This menu allows you to configure volume settings. To access this menu: 1. In the KEF Connect App, tap the Setting icon ( ) at the bottom of the Home screen. 2. Tap “Volume”. 14.8.1 Volume Display Setting This setting allows you to configure how the volume control should be displayed.

  • Page 74: Hardware Volume

    14.8.2 Hardware Volume This setting is only available on iOS devices. The hardware volume buttons refer to the physical volume buttons on your device. Disable this setting when you are experiencing 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...

  • Page 75: Firmware Upgrade

    14.9.1 Automatic Firmware Update after Onboarding After you have successfully set up the speakers with the KEF Connect App, you may be required to update the firmware if a new version is available. Follow the instructions in the KEF Connect App to complete the update process.

  • Page 76: Manual Firmware Update

    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 “Speaker update”.

  • Page 77: Application

    14.10 Application This menu allows you to customise the streaming audio quality, theme and send analytics. To access this menu: 1. In the KEF Connect App, tap the Setting icon ( ) at the bottom of the Home screen. 2. Tap “Application”.

  • Page 78: Analytics - Improve App/Speaker

    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 enabled to help KEF to improve product performance...

  • Page 79: Support

    3. Select the type of support you need and proceed as instructed on the screen. 4. When reporting an issue, your email program will automatically attach the speaker logs that helps KEF investigate the issue. Please add a description of the problem in the email message as well.

  • Page 80: Cleaning And Maintenance

    Cleaning and Maintenance WARNING! Risk of electric shock! Improper cleaning of the speakers may result in injury. • Always unplug the power cables from the power sockets/outlets before cleaning the speakers. NOTICE! Risk of short circuit! Water and other liquids that have penetrated the housing may cause a short circuit. • Make sure that no water or other liquids penetrate the housing of the speakers.

  • Page 81: Disposal

    Disposal 16.1 Disposing of the Packaging Sort the packaging before you dispose of it. Dispose of paperboard, cardboard and wrappings in accordance with your local guidelines. 16.2 Disposing of the Speakers Old appliances may not be disposed of in the household waste! LS50 Wireless II is an electronic product and may not be able to be disposed of as household waste.

  • Page 82: Faq And Troubleshooting

    • Then, download the KEF Connect App from the App Store or Google Play Store and install it on your mobile device. Follow the instructions in the KEF Connect App to get the speakers connected (onboarded) to your home Wi-Fi network.
  • Page 83 After connecting the inter-speaker cable, you must also enable Cable Mode in the KEF Connect App. 9. Can I rename the speaker? • Yes, renaming can be done in the KEF Connect App. This will change the name for both Wi-Fi and Bluetooth connections.

  • Page 84: Playback And Streaming

    17.2 Playback and Streaming 1. Which is the best wireless streaming option for different apps? • Recommendations for the best wireless streaming options with regard to music/ media apps on your mobile devices. Wireless streaming protocol AirPlay 2 Chromecast ROON Music Bluetooth Ready streaming...
  • Page 85 4. How should I set the speakers 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 “Volume Display” to “-/+” 2) Select the relevant source input.

  • Page 86: Troubleshooting

    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.
  • Page 87 • Change the HDMI cable (our internal tests found that HDMI cables of lower quality may not be able to establish the connection). • If the problem persists, please report the issue in the Support section of the KEF Connect App for investigation. In the meantime, use the Optical connection as a fall-back solution.
  • Page 88 • We are constantly updating 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 database.

  • Page 89: Led Indicators

    17.4 LED Indicators The connection and operation status can be checked through the colours and patterns of the LED indicators on the top panel of the Primary Speaker. LED indicator Status The speakers are trying to connect to a Wi-Fi network. Wi-Fi icon is blinking white and amber.
  • Page 90 1. Pull the power cables from both speakers. Source button and Volume Down button are blinking slowly. 2. Wait approximately 60 seconds. 3. Plug the power cables back to both speakers. 4. Perform the firmware update again on the KEF Connect App. If the problem persists, please contact your KEF dealer.
  • Page 91 3. Plug the power cables back to both speakers to resume normal operation. If the problem persists, please contact your KEF dealer. Note: System error may occur with improper power connections. Do not use a socket/outlet extender with the...

  • Page 92: Appendix

    Appendix 18.1 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 (-6 dB) 40 Hz – 47 kHz measured at 85 dB/1 m (Depends on EQ settings) Frequency response (±3 dB)
  • Page 93 For further information and troubleshooting, please visit the KEF website: KEF.COM KEF reserves the right, in line with continuous research and development, to amend or change specifications without prior notice. E. & O.E The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG, Inc.
  • Page 94 Apple and AirPlay are registered trademarks of Apple Inc., registered in the U.S. and other countries. Deezer is a 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 Tencent Music Entertainment Group (TME).

  • Page 95: Explanation Of Symbols

    18.2 Explanation of symbols 18.2.1 Warning Symbols The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the products enclosure that may be of a sufficient magnitude to constitute a risk of electrical shock to persons.
  • Page 96 The Japan PSE Mark Certification indicates that the product meets the technical requirements of the Electrical Appliance and Material Safety Law (DENAN). These marks indicate compliance with technical and design requirements for telecommunication terminal equipment in Japan. The Korean Certification mark indicates that the product complies with Korea’s product safety requirements for electrical and electronic equipment.

  • Page 97: Ir Command Codes

    18.3 IR Command Codes LS50 Wireless II works with universal programmable remote control provided that the remote control manufacturers have implemented KEF IR command codes in their remote controls. The following table lists the command codes required. Code Format: Factory Code:...
  • Page 98 For more support, please visit kef.com...

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