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KEF LSX II, User Manual

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KEF LSX II User Manual Download Page 43

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12.  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. 

Please note that Microsoft has ended support for Windows 7 and Windows 8, and it is 
recommended to use Windows 10 or above for best USB audio experience.

To adjust the audio resolution of a Mac PC, go to “Utilities > Audio Midi Setup” and  
select the desired format. 

12.1  USB Connection

Connect your computer and the USB port (U) on the back panel of the Primary 
Speaker via a USB cable (type C).

Summary of Contents for LSX II

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

Page 2: ...l Brackets 17 4 5 2 Desk Pads 17 4 5 3 Floor Stands 17 5 Connection and Control Interface 18 5 1 Front Panel 18 5 2 Back Panel 19 5 3 Bottom Panel 20 5 4 LED Indications 21 5 5 Remote Control 22 5 6 K...

Page 3: ...ng USB Mode 44 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 1...

Page 4: ...ume 74 14 9 Performance 75 14 9 1 Streaming Settings Audio Quality 75 14 9 2 Network quality 75 14 10 Firmware Upgrade 77 14 10 1 Automatic Firmware Update after Onboarding 77 14 10 2 Automatic Firmwa...

Page 5: ...the latest musical formats and reproducing them to the highest possible quality This legacy continues today with the LSX II our compact yet powerful speaker system for the digital music era The award...

Page 6: ...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 an...

Page 7: ...kers and accessories out of the packaging 2 Check to make sure that all parts are included namely Speaker 2 Primary Speaker 1 Secondary Speaker 1 Remote control 1 with 2 AAA batteries Inter speaker ca...

Page 8: ...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 Connect...

Page 9: ...connectors 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 LED indicator light of the Primar...

Page 10: ...FConnect 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 user account You may l...

Page 11: ...k 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 onboarding proces...

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: ...e 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...

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: ...D 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 fir...

Page 16: ...er 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 C The two sp...

Page 17: ...nt method of attaching the speakers to a wall and are capable of rotating the speakers 90 to either side or down 4 5 2 Desk Pads They are ideal when using the speakers as a pair of desktop loudspeaker...

Page 18: ...aker cone The IR infrared receiver for the remote control can be found on the Primary Speaker where the LED indicator light is located The LED indicator light of the Secondary Speaker only comes on wh...

Page 19: ...ing button Re establishes the connection between the Primary Speaker and the Secondary Speaker if the connection is lost B Bluetooth pairing button Enables Bluetooth pairing The speakers will be ready...

Page 20: ...ough an HDMI cable T Primary Secondary connection port Connects the Primary Speaker and Secondary Speaker with the inter speaker cable N Network port Connects the speakers to a router with a LAN cable...

Page 21: ...i network Solid white The speakers are operating in Wi Fi Mode Solid green The speakers are operating in Spotify Connect Mode Solid blue The speakers are operating in Bluetooth Mode and a device is al...

Page 22: ...t 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 done Point t...

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: ...eless streaming 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 AirP...

Page 25: ...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 LSX II or the name you have created for the speakers...

Page 26: ...box 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 LSX...

Page 27: ...nd podcast 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 i...

Page 28: ...ming 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 Brows...

Page 29: ...nition music 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...

Page 30: ...res audio is supported with Amazon Music Unlimited subscription 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...

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 off...

Page 32: ...obile devices App Wireless streaming protocol AirPlay 2 Chromecast ROON Ready Music streaming app native protocol KEF Connect App Bluetooth Spotify Spotify Connect TIDAL TIDAL Connect QQ Music QPlay A...

Page 33: ...s 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 Legacy AirPlay AirPlay 1 speakers are not compatible with m...

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: ...t 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 Zone Picker in t...

Page 36: ...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 LSX II 8 2 Google Assistant You can use Google Assistant...

Page 37: ...cond wake up source to turn on the speakers automatically when there is audio input through Bluetooth connection See chapter Power Saver Second Wake Up Source 9 2 Bluetooth Pairing 1 In Bluetooth mode...

Page 38: ...or the speakers from 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 i...

Page 39: ...C 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 panel o...

Page 40: ...r light of the Primary Speaker pulses light blue The LED indicator light of the Primary Speaker illuminates light blue briefly and then fades out when HDMI connection is established You can assign TV...

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: ...indicator light of the Primary Speaker illuminates purple briefly and then fades out when Optical mode is selected You can assign Optical mode as a second wake up source to turn on the speakers automa...

Page 43: ...his feature is compatible with Mac and Windows PC with a maximum streaming quality of 192 kHz 24 bit Please note that Microsoft has ended support for Windows 7 and Windows 8 and it is recommended to u...

Page 44: ...ndicator 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 whe...

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: ...ED indicator light of the Primary Speaker illuminates yellow briefly and then fades out when AUX mode is selected You can assign Auxiliary mode as a second wake up source to turn on the speakers autom...

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: ...equent use 1 Tap the edit icon at the top right of the app 2 Tap the or symbols or drag and drop to show or hide a tile 3 Tap the edit icon at the top right of a tile 4 Tap the or symbols or drag and...

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: ...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 14 3 1 4 Spotify Through the KEF Connect App you c...

Page 53: ...re is a green or blue dot next to the MQA logo in the Now Playing screen to indicate that the App is decoding and playing an MQA stream or file and denotes provenance to ensure that the sound is ident...

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: ...n 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...

Page 57: ...d cannot be saved Adding a Track to the Queue 1 From the playback screen tap the option icon 2 Select Add to Queue to add the track to the end of the Queue Or select Play next to add the track as the...

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: ...0 40 m2 40 m2 Balance Control L C R Subwoofer is plugged in No Yes If a subwoofer is plugged in set up the model balance and volume of the subwoofer 6 Tap Save when the settings are done 14 4 2 Expert...

Page 64: ...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 Standard Extra Balance Control L C R Subwoofer mod...

Page 65: ...s the bass extension of the speakers The larger the room selected the lower the roll off point Balance Control This setting allows you to adjust the volume balance between the left and right channels...

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 Sa...

Page 72: ...ting to enable Cable mode and disable the wireless connection Cable Mode is required recommended when You prefer a higher resolution at 96 kHz 24 bit wireless 48 kHz 24 bit You are experiencing audio...

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: ...n 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...

Page 75: ...ng services inside the KEF Connect app Hi Fi Hi Fi quality Always select this setting for the best audio quality The highest quality depends on the music streaming service and your subscription High C...

Page 76: ...ing Using KEF Connect App FAQ and Troubleshooting 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 a...

Page 77: ...tomatic 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 firmw...

Page 78: ...g 14 10 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 79: ...f the Home screen 2 Tap Application 14 11 1 Theme Settings Theme This setting allows you to set a theme mode System Light or Dark 14 11 2 Theme Settings Reset Home Screen This setting allows you to re...

Page 80: ...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 81: ...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 82: ...isposed 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 manner a...

Page 83: ...ator 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 d...

Page 84: ...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 85: ...N 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 podcast Yout...

Page 86: ...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...

Page 87: ...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...

Page 88: ...inimize the interference around the speakers 8 The audio is out of sync with the picture when using the speakers with a TV If available try the video delay lip sync function of yourTV Use HDMI optical...

Page 89: ...and try again SmartTVs 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 us...

Page 90: ...ake sure your router is turned on Move the Primary Speaker closer to the router If the problem persists connect the Primary Speaker to your router by a LAN cable If this happens right after the networ...

Page 91: ...eakers are muted in USB Mode Primary Blinking yellow slowly The speakers are muted in AUX Mode Primary Blinking white and blue The Primary Speaker is in wireless pairing mode searching for the Seconda...

Page 92: ...the power cables from both speakers 2 Wait approximately 60 seconds 3 Plug the power cables back to both speakers 4 The LED indicator of the Primary Speaker should be pulsing amber indicating that th...

Page 93: ...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 send a log from the KEF Connect App Settings Support...

Page 94: ...F Class D Max SPL measured at 1m 102 dB Wireless streaming features AirPlay 2 Google Chromecast ROON Ready UPnP Compatible Bluetooth 4 2 Streaming services Spotify via Spotify Connect Tidal via Tidal...

Page 95: ...Hz 5 GHz Metamaterial Absorption Technology is a joint development with Acoustic Metamaterials Group MQA and the Sound Wave Device are registered trade marks of MQA Limited 2016 Wireless performance d...

Page 96: ...stem 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 wa...

Page 97: ...ly help improve your test score Why is the score lower than other tests Internet connectivity tests are often optimised to give you a theoretical best scenario speed and can be a good indicator for wh...

Page 98: ...erformance can be compromised 4 Reconsider using network homeplugs if you are doing so These devices use your mains wiring as an extension of an Ethernet cable Whilst a convenient solution they don t...

Page 99: ...affected by obstructions It may be possible that whilst the 2 4 GHz band has a lower total bandwidth in practice it is a better choice when the router and speakers are not in the same room 8 If you h...

Page 100: ...5GHz networks will help with optimising bandwidth by allowing you to manage what devices are placed on which network Mesh networks and Wi Fi extenders Mesh networks and Wi Fi extenders can be very us...

Page 101: ...the EU To prevent possible harm to the environment or human health from uncontrolled waste disposal recycle it responsibly to promote the sustainable reuse of material resources To dispose of your us...

Page 102: ...orea s product safety requirements for electrical and electronic equipment The China Compulsory Certificate mark indicates that the product meets the safety requirements of the Chinese national standa...

Page 103: ...e 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 u...

Page 104: ...104 For more support please visit kef com...

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