KEF LSX II LT User Manual
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KEF LSX II LT User Manual

Wireless speaker system
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Summary of Contents for KEF LSX II LT

  • Page 1 User Manual LSX II LT...

  • Page 2: Table Of Contents

    2. General Information .........................6 Reading and Storing the User Manual ......................6 2.2 Signal Symbol/Word Definitions ........................6 3. In the Box and Unpacking .......................7 4. Setting Up LSX II LT .........................8 Selecting an Appropriate Router ........................8 Connecting to Power ..............................9 Onboarding ...................................10 4.3.1 Installing the KEF Connect App .......................10...
  • Page 3 11.3 Playback Controls ..............................41 12. Playback with USB Input .......................42 12.1 USB Connection ................................42 12.2 Selecting USB Mode ..............................43 12.3 Playback Controls ..............................43 13. Using KEF Connect App ...................... 44 13.1 Home ....................................44 13.1.1 Overview ................................44 13.1.2 Editing the Home Screen ..........................45 13.2 Remote Control .................................45...
  • Page 4 13.7 Speaker Preferences ..............................70 13.7.1 Power On Options – Standby Mode ....................70 13.7.2 Power On Options – Second Wake-Up Source ................70 13.7.3 Power On Options – Auto-Switch to TV Source ...............70 13.7.4 Do Not Disturb – Standby LED ......................70 13.7.5 Do Not Disturb –...

  • Page 5: Introduction

    LSX II LT, our compact, yet powerful speaker system for the digital music era. Part of the LS Wireless collection, the LSX II LT is made for both newcomers to the brand with an ear for superior Hi-Fi and existing KEF customers looking to introduce multiroom streaming.

  • Page 6: General Information

    General Information Reading and Storing the User Manual This user manual accompanies the LSX II LT 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

    • Power cable ×1 (length: 2 m, with country-specific power plug) • Printed materials: Quick Start Guide, Safety Information & Specifications, Warranty Information and KEF Welcome Card 3. Check whether the speakers or individual parts are damaged. If this is the case, do...

  • Page 8: Setting Up Lsx Ii Lt

    Setting Up LSX II LT Selecting an Appropriate Router The speakers must be “onboarded” to your Wi-Fi network (see chapter “Onboarding”) for the best sound quality, wireless streaming and comprehensive control. Technical Requirements of your Router • Network standard: IEEE 802.11a/b/g/n/ac, IPv4, IPv6, •...

  • Page 9: Connecting To Power

    3. Connect the power plug into the power socket/outlet. After successful power connections, the LED indicator light 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

    Install the KEF Connect App on your mobile device to get the speakers “onboarded” to your Wi-Fi network. 1. Search “KEF Connect” in the App Store or Google Play Store to download and install the KEF Connect App on your iOS* or Android** device.

  • 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 “LSX II LT” under “Speakers nearby”. The speakers with the warning sign ( ) are not set up yet.

  • Page 12: Using Android Devices

    Using Android Devices 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 • The LED indicator light of the Primary Speaker illuminates white briefly and then fades out 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 14: 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 15: Installing Accessories

    Installing Accessories These accessories (sold separately) provide more installation options to suit your listening environments. Please visit the KEF website for product details. 4.5.1 Wall Brackets They offer a quick and elegant method of attaching the speakers to a wall and are capable of rotating the speakers 90°...

  • Page 16: Setting Up Without Wi-Fi

    You can set up the speakers without a Wi-Fi network. However, this will limit the controls and functionalities of the speakers. In addition, important updates and features in the KEF Connect App will be missed without Wi-Fi connection. 1. To set up without Wi-Fi connection, connect the power cable to the AC input connector at the back of the Primary Speaker.

  • Page 17: Connection And Control Interface

    Connection and Control Interface Front Panel Secondary Speaker Primary Speaker • An LED indicator light can be found on each speaker, below the Uni-Q driver (speaker cone). • The IR (infrared) receiver for the remote control can be found on the Primary Speaker where the LED indicator light is located.

  • Page 18: Back Panel

    Plays audio input from a computer or charges* KW-1 Wireless Kit. *Requires activation of the USB charging function in the KEF Connect App. The USB audio input function will be disabled. S Subwoofer output jack Connects a subwoofer to the speakers through an...

  • Page 19: Bottom Panel

    V TV port Plays audio input from a source (e.g. ARC port of television) through an HDMI cable. T Primary/Secondary Connects the Primary Speaker and Secondary connection port Speaker with the interspeaker cable. N Network port Connects the speakers to a router with a LAN cable. This port is colour-coded yellow.

  • Page 20: Led Indications

    Status Blinking white and The speakers are ready to connect to a Wi-Fi network. amber Launch the KEF Connect app to set up the speakers. The speakers are in Standby Mode and connected to a Solid amber* Wi-Fi network. Solid white* The speakers are operating in Wi-Fi Mode.

  • Page 21: 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 22 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 23: Wi-Fi Streaming

    ) in the playback screen and then tap the AirPlay icon ( 3. Select “LSX II LT” (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 24: Chromecast

    If your device is Chromecast-enabled, you can stream audio output from the device to the speakers. To activate Chromcast built-in: 1. Tap “Chromcast Built-in” under “Settings” in the KEF Connect App. 2. Tap “Proceed”. 3. Accept the terms and conditions and then tap “Accept”.
  • Page 25 To cast the audio output: 1. Start music or video playback on your Chromecast-enabled device. 2. In the Google Home App, tap “LSX II LT” (or the name you have created for the speakers). 3. Tap “ Cast my audio”.

  • Page 26: 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 “LSX II LT” (or the name you have created for the speakers) from the selection menu to start streaming. [Step 1–3]...

  • Page 27: Qplay

    6.1.3.2 QPlay QQ Music is one of China’s most popular online music streaming 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.

  • Page 28: Tidal Connect

    ( ) in the “Now Playing” screen. 2. Select “LSX II LT” (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 29: Kef Connect App Streaming

    You can access your Qobuz account through the KEF Connect App to stream music to the speakers. 6.1.4.4 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 30: Tidal

    The KEF Connect App offers access to thousands of Internet radio stations from all over the world, offering music, news and discussion. 6.1.4.7 Podcasts The KEF Connect App provides access to a wide range of podcasts covering a huge number of genres and topics. 6.1.5 UPnP Playback You can play compatible music files stored in the music library of a connected media server (e.g.
  • Page 31 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 Music Bluetooth streaming Connect app native protocol Spotify Spotify – Connect TIDAL TIDAL Connect QQ Music –...

  • Page 32: Multi-Room Streaming

    2. Check your mobile device if it is connected to the same Wi-Fi network or linked to the same account as your speakers. 3. Open the Google Home App. 4. Follow the instructions in the App to add “LSX II LT” to “Home”.
  • Page 33 5. Tap “Settings” and then the “>” icon in the “Devices, groups and rooms” section. 6. 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.
  • Page 34 7. Tap “Next” 8. Enter a name for your group. 9. Tap “Save”.

  • Page 35: Voice Control Over Mobile Device

    Hey Siri. Play some music on the LSX II LT. Google Assistant You can use Google Assistant to control playback (e.g. skipping tracks, controlling the volume level) while your Android mobile device is streaming music to the speakers.

  • Page 36: 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 remote control. 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.
  • Page 37 KEF Connect App to disconnect the paired device. 2. Turn on the Bluetooth feature of your device and select “KEF LSX II LT” (or the name you have created for the speakers) from the list of available devices to pair.

  • Page 38: Playback With Hdmi Arc Input

    Playback with HDMI ARC input The speakers are compatible with HDMI ARC (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 HDMI CEC.

  • Page 39: 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 remote control. • If no HDMI cable is conected to the speakers and TV mode is selected, the LED indicator light of the Primary Speaker pulses light blue.

  • Page 40: 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 41: 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 remote control. • The LED indicator light of the Primary Speaker illuminates purple briefly and then fades out when Optical mode is selected.

  • Page 42: Playback With Usb Input

    Playback with USB Input You can connect your computer to the speakers through a USB (type C) cable. The speakers must always be first connected to your local network before USB connection. This feature is compatible with Mac and Windows PC, with a maximum streaming quality of 192 kHz / 24 bit.

  • Page 43: Selecting Usb Mode

    12.2 Selecting USB Mode • In the KEF Connect App, tap the USB button (USB) to switch to USB mode. • Alternatively, press the source button on the remote control. • The LED indicator light of the Primary Speaker illuminates pink briefly and then fades out when USB mode is selected. You can assign USB mode as a second wake-up source to turn on the speakers automatically when there is audio input through the USB connection.

  • Page 44: 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. 13.1 Home 13.1.1 Overview Latest news and stories from KEF...

  • Page 45: Editing The Home Screen

    13.1.2 Editing the Home Screen 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 46: Music Content

    13.3 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 47: Playing Music From Music Streaming Services

    13.3.1 Playing Music from Music Streaming Services 13.3.1.1 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 48: Deezer

    13.3.1.2 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 49: Qobuz

    13.3.1.3 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. 13.3.1.4 Spotify Through the KEF Connect App, you can be prompted to the Spotify App on your...

  • Page 50: Tidal

    13.3.1.5 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 51: Internet Radio

    13.3.1.6 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. 13.3.1.7 Podcast 1. To access podcast contents, tap “Podcasts” under “Live Stream” in the KEF Connect App.

  • Page 52: Custom Stations

    13.3.1.8 Custom Stations In case you cannot find radio stations in the Internet Radio, you can register them for easy access. 1. To access Custom Stations, tap “Custom Stations” under “Live Stream” in the KEF Connect App. 2. Tap “Add Radio URL”.

  • Page 53: Playback Controls

    13.3.2 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. 13.3.2.1 Playback Screen Hide playback screen Queue Track metadata Options...

  • Page 54: Favourites

    13.3.2.3 Favourites • Selecting or Deselecting Favourites In the playback screen, tap the option icon ( … ) and then select “Add to favourite” or “Remove from favourite” to select or deselect an item (music, podcast, radio station) as favourites. Alternatively, tap the option icon ( …...

  • Page 55: Playing Queue

    13.3.2.4 Playing 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 56 • 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 57: Playlists

    13.3.2.5 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. •...
  • Page 58 • Adding Tracks to a Playlist 1. From a list of tracks or from the playback screen, tap the option icon ( … ) on the right 2. Tap “Add to playlist”. 3. Select the playlist you want to add the track to. Depending on your selections, you can also add all tracks from an artist or all tracks from an album to the playlist.
  • Page 59 • Deleting a Playlist 1. In the playlist, tap the option icon ( ) at the top right corner. 2. Tap “Delete playlist”.

  • Page 60: Equalisations

    Equalisations For the best audio performance, apply sound settings according to your listening area. 13.4.1 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 61 • 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 from the wall (< 10 cm to > 50 cm) •...

  • Page 62: Expert Mode

    If a subwoofer is plugged in, set up the model, balance and volume of the subwoofer. 6. Tap “Save” when the settings are done. 13.4.2 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”.
  • Page 63 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 (-3.0 dB to 3.0 dB) •...
  • Page 64 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. Distance from the wall (Expert Mode: Wall Mode): This setting adjusts all frequencies from around 500 Hz downwards, causing broader changes than Desk Mode.

  • Page 65: Selecting A Sound Profile

    13.4.3 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 66: Deleting A Sound Profile

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

  • Page 67: Profile

    This menu allows you to view your personal details (account name and profile picture) of your registered user account, or delete your account. 1. In the KEF Connect App, tap the Setting icon ( ) at the bottom of the Home screen.

  • Page 68: Choosing Your Speaker

    13.6.1 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 69: 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, forget the speakers (disconnect them from the KEF Connect App) or perform factory reset.

  • Page 70: Speaker Preferences

    13.7 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”. 13.7.1 Power On Options –...

  • Page 71: Do Not Disturb - Start Up Tone

    13.7.9 Subwoofer System Options – KW-1 Wakeup Mode (KC62/KF92) This setting provides a stronger wake-up signal when user is using KEF KC62 or KF92 subwoofer with the KW-1 wireless subwoofer adapter. Enabling this mode with other connection configurations may cause unexpected results.

  • Page 72: Volume

    13.8 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”. 13.8.1 Volume Display Setting This setting allows you to configure how the volume control should be displayed.

  • Page 73: Speaker Volume Sensitivity

    13.8.3 Speaker Volume Sensitivity This setting allows you to configure the number of volume steps for each single press of the physical volume buttons of your device. 13.8.4 Maximum Volume This setting allows you to configure the maximum level when adjusting the volume. The setting applies to all sources.

  • Page 74: Performance

    Performance This menu allows you to configure the streaming settings and assess your network quality. To access this menu: 1. In the KEF Connect App, tap the Setting icon ( ) at the bottom of the Home screen. 2. Tap “Performance”.
  • Page 75 • Test history: Select this option to review the test history. • Learn to improve your connection: Select this option to access the KEF website for tips on assessing and improving your network quality.

  • Page 76: Firmware Upgrade

    13.10.2 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

    This setting allows you to reset the Home screen of the app to default settings. 13.11.3 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 13.11.4 Chromecast Built-in This setting is related to Chromecast Casting activation, sending device usage and crash reports to Google.

  • Page 78: 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 79: Cleaning And Maintenance

    Cleaning and Maintenance WARNING! Risk of electric shock! Improper cleaning of the speakers may result in injury. • Always unplug the power cable from the power socket/outlet before cleaning the speakers. NOTICE! Risk of short circuit! Water and other liquids that have penetrated the housing may cause a short circuit. •...

  • Page 80: Disposal

    Old appliances may not be disposed of in the household waste! LSX II LT is an electronic product and may not be able to be disposed of as household waste. Please dispose of your speaker in accordance with the regulations in force in your city or county.

  • Page 81: 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 82 Speaker, see chapter “Troubleshooting”. 8. 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. 9. Can I use the speakers without a Wi-Fi network? •...

  • Page 83: 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 Music KEF Connect Bluetooth streaming app native protocol Spotify Spotify –...
  • Page 84 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 85: Troubleshooting

    16.3 Troubleshooting 1. What should I do to set up the speakers to another network? 1. In the Speaker list, tap the info icon ( ) to enter Speaker info page. 2. Tap the arrow icon ( > ) on the Network row. 3.
  • Page 86 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 10-15 seconds before plugging it back in) and try again. Smart TVs are like phones and sometimes require a reboot. • 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...
  • 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

    LED indicator lights on the Primary and Secondary Speakers. Refer to the table below. Speaker Pattern Status LSX II LT is ready to connect to a Wi-Fi Blinking white and Primary network. Launch the KEF Connect app to set up amber the speakers.
  • Page 90 3. Plug the power cables back to both speakers. Primary 4. The LED indicator of the Primary Speaker Blinking red quickly Secondary should be pulsing amber, indicating that the speakers are attempting to connect to the network. If the problem persists, please contact your KEF dealer.
  • Page 91 Blinking red slowly 4. Perform the firmware update again on the Secondary KEF Connect App. If the problem persists, please send a log from the KEF Connect App (Settings > Support > Report issue). Blinking red and light The Secondary Speaker is missing during Primary blue slowly firmware update.

  • Page 92: Appendix

    Appendix 17.1 Specifications Model LSX II LT Drive units Uni-Q Driver Array: HF: 19 mm (0.75 in.) aluminium dome LF/MF: 115 mm (4.5 in.) magnesium/aluminium alloy cone Frequency range (-6 dB) 49 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...

  • Page 94: Speaker Connection Test

    The speaker connection test in KEF Connect shows you how much network bandwidth is available to your KEF wireless speaker system. It considers every stage of your network by downloading a file from a random server to the speakers – from the bandwidth provided by your internet service provider (ISP) and server traffic, all the way to the speed of the connection between your router and speakers.
  • Page 95 ISP is providing but will not tell you specifically what bandwidth your KEF speaker system will be able to take advantage of. The KEF Connect speaker connection test more closely represents what happens...
  • Page 96 2. Reboot the router. Routers are basically computers and are affected by the same problems. Bugs and temporary errors can cause too much memory being used, or the router can be overheating (one reason to not place it in an enclosed space!). In addition, there may be IP address conflicts.
  • Page 97 If you have a lot of devices on the 2.4 GHz band, then there may be little available bandwidth left. If your KEF speaker system is close to the router and has little to no obstructions, try connecting it to the 5 GHz band for more bandwidth. If there are obstructions, try migrating network devices that are closer to the router to the 5 GHz band instead, freeing up bandwidth on the 2.4 GHz band.
  • Page 98 It is also worth noting that different router manufacturers handle mesh technology differently, and there may be compatibility issues with networked devices. If this is the case when using a KEF wireless speaker system, please send a support request, including the speaker logs, through the KEF Connect app.

  • Page 99: Power Consumption

    17.3 Power Consumption Power consumption of LSX II LT in different operation modes: Power Consumption of LSX II LT Operation mode Standby Power On ECO mode 1.2 W 14.5 W Normal mode Non-ECO mode 3.2 W 14.5 W Non Wi-Fi mode (with HDMI auto wakeup) 1.2 W...
  • Page 100 This UL Energy Certification Mark symbol means UL has certified that the product meets the requirements for energy efficiency and is consistent with technical and legal requirements of the United States and Canadian markets. This FCC mark certifies that the electromagnetic interference from the device is under the limits approved by the Federal Communications Commission in the US.
  • Page 101 RoHS (Taiwan): This symbol means that the product does not exceed the specified concentration limits for specific hazardous substances. The product obtained the certification from the Taiwan National Communications Commission (NCC) for low-power radio frequency appliances. This MCMC certification mark indicates that a communications device is certified for compliance to standards according to the Communications and Multimedia (Technical Standards) Regulations 2000 in Malaysia.

  • Page 102: Ir Command Codes

    17.5 IR Command Codes LSX II LT 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 103 For more support, please visit kef.com...

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