KEF LSXIIWH
KEF LSX II Wireless HiFi Speaker System User Manual
Model: LSXIIWH
Introduction
Welcome to the user manual for your KEF LSX II Wireless HiFi Speaker System. This guide provides comprehensive instructions for setting up, operating, and maintaining your speakers to ensure optimal performance and longevity. The LSX II system offers high-fidelity sound with versatile connectivity options, including wireless streaming and direct wired connections, making it suitable for various audio setups.

Figure 1: KEF LSX II Wireless HiFi Speaker System (Mineral White).
Video 1: Welcome to KEF LSX II. This video provides a brief overview of the KEF LSX II Wireless HiFi Speaker System.
What's in the Box
Upon unboxing your KEF LSX II system, please ensure all the following components are present:
- 1 Pair LSX II Speakers (Primary and Secondary)
- 1 Set of Power Cords (for each speaker)
- 1 Interspeaker Cable (Ethernet cable for wired connection between speakers)
- Remote Control
- Quick Start Guide

Figure 2: Included components of the KEF LSX II system.
Setup
1. Speaker Placement
For optimal sound performance, place the speakers equidistant from your primary listening position, forming an equilateral triangle. Ensure there is adequate space around each speaker for proper ventilation and sound dispersion. The LSX II speakers are designed for tabletop use but can also be mounted on stands or walls with compatible accessories.

Figure 3: KEF LSX II speakers in a typical desktop setup.
2. Connecting the Speakers
The LSX II system consists of a primary speaker and a secondary speaker. You can connect them wirelessly or via the supplied interspeaker cable for higher resolution audio.
- Wired Connection (Recommended for best performance): Connect the supplied Ethernet cable between the "TO P/S" port on the primary speaker and the "TO P/S" port on the secondary speaker.
- Wireless Connection: If you prefer a wireless interspeaker connection, ensure both speakers are powered on and within range. You can configure this setting via the KEF Connect app.

Figure 4: Rear panel of the secondary LSX II speaker.
3. Power Connection
Connect the power cords to the AC input on the rear of each speaker, then plug them into a wall outlet.
4. Initial Setup with KEF Connect App
Download the KEF Connect app from your device's app store. Follow the in-app instructions to connect your LSX II speakers to your Wi-Fi network and complete the initial setup. The app allows you to control settings, access streaming services, and manage firmware updates.

Figure 5: KEF Connect App for easy control and setup.
Operating Instructions
1. Power On/Off
Press the power button on the rear of the primary speaker or use the KEF Connect app to turn the speakers on or off.
2. Input Selection
The LSX II supports multiple input sources:
- HDMI ARC: Connect to your TV for high-quality audio.
- USB-C: Connect to a computer or other compatible device.
- Optical: For digital audio sources.
- Aux (3.5mm): For analog audio sources.
- Bluetooth: Pair with your mobile devices.
- Wi-Fi/Network: Access built-in streaming services (Spotify, Tidal, Amazon Music, Qobuz, Deezer, QQ Music) or stream via AirPlay 2, Chromecast, or Roon.
Select your desired input using the remote control or the KEF Connect app.

Figure 6: Front view of an LSX II speaker, showcasing the Uni-Q driver.
3. Volume Control
Adjust the volume using the remote control, the KEF Connect app, or the volume controls on your connected source device.
4. Streaming Services
Utilize the KEF Connect app to log into and control integrated streaming services. For multi-room audio, use AirPlay 2 or Chromecast to synchronize playback across compatible devices.
Maintenance
- Cleaning: Gently wipe the speaker surfaces with a soft, dry, lint-free cloth. Avoid using abrasive cleaners, solvents, or sprays directly on the speakers.
- Dust Protection: Keep the speakers free from dust accumulation, especially around the drivers and rear ports, to maintain optimal sound quality.
- Ventilation: Ensure the rear ports are not obstructed to allow for proper airflow and prevent overheating.
- Environmental Conditions: Avoid exposing the speakers to extreme temperatures, high humidity, or direct sunlight.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound | Power not connected; incorrect input selected; volume too low; interspeaker cable loose (if wired). | Check power connections; verify input source; increase volume; ensure interspeaker cable is securely connected. |
| Intermittent Audio Dropouts (Wireless) | Wi-Fi interference; speakers too far apart (if wireless interspeaker connection). | Move speakers closer; switch to wired interspeaker connection; reduce Wi-Fi interference (e.g., move router). |
| Cannot Connect to KEF Connect App | Speakers not in setup mode; incorrect Wi-Fi password; network issues. | Ensure speakers are discoverable; re-enter Wi-Fi password; restart router and speakers. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | LSX II Wireless |
| Speaker Type | Bookshelf |
| Mounting Type | Tabletop Mount |
| Product Dimensions | 7.1"D x 6.1"W x 9.5"H |
| Item Weight | 22.4 pounds (10.2 Kilograms) |
| Connectivity Technology | Wi-Fi, Bluetooth, Airplay |
| Wireless Communication | Airplay, Bluetooth, Wi-Fi |
| Compatible Devices | Desktop, Laptop, Smartphone, Tablet, Television |
| Speaker Maximum Output Power | 200 Watts |
| Frequency Response | 54 Hz (lower limit) |
| Woofer Diameter | 4.5 Inches |
| Tweeter Diameter | 0.75 Inches |
| Controller Type | App Control, Remote Control |
| Color | Mineral White |
| UPC | 637203047886 |

Figure 7: KEF LSX II speaker dimensions.
Warranty and Support
The KEF LSX II Wireless HiFi Speaker System comes with a Limited Warranty. Please refer to the Quick Start Guide included in your package for specific warranty terms and conditions.
For technical support, product registration, or further assistance, please visit the official KEF website or contact KEF customer service. You can find contact information and FAQs on their support pages.
Online Resources:
- KEF Official Store on Amazon
- KEF Support Page (Example link, actual URL may vary)
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