Kef LSX Blue Active Wireless Bookshelf Speakers with Bluetooth,Airplay 2

  • Warranty 2 years parts and labour,subject to registration within 30 days of delivery

Key Features

  • Two-way 2.0 audiophile active digital speaker with 4" Uni-Q driver.
  • Acoustically optimised cabinet with constrained layer damping.
  • KEF's unique Music Integrity Engine™ time and phase correcting DSP algorithm
  • Four amplifier active system (2 x 30W + 2 x 70W Class D)
  • Customisable EQ settings (via KEF Control app)

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    • Warranty 2 years parts and labour,subject to registration within 30 days of delivery
    • Model:LSX-BLUE
    • SKU:100300513

    ”KEF shrinks its Award-winning all-in-one hi-fi system.” ’What Hi-Fi?’ 2019 Product of the Year.

    Compact speakers which do it all

    Great-sounding and stylish, the KEF LSX speakers get off to a flying start. Yet, there’s more. Featuring built-in 2 x 100 watt amplifiers, Wi-Fi, AirPlay 2 and Bluetooth connectivity plus optical and analogue inputs, the LSX is a complete system in itself.

    Truly wireless design
    Unlike most active speakers, the LSXs are truly wireless. This means there’s no physical link between the speakers (operates with music files up to 48kHz/24-bit). If you want to listen to Hi-Res music up to 96kHz/24bit then simply use the supplied linking cable.

    Spacious, stereo sound
    With two speakers rather than one, you’re already off to the perfect start with broad, stereo sound. At their heart of each speaker is KEF’s Uni-Q technology. This places both drivers on the same axis, giving smooth, cohesive sound and an immersive soundstage. Enhancing this further is KEF’s Music Integrity Engine. This advanced technology corrects and adjusts the speakers’ output to deliver the most accurate sound with the least possible distortion.

    Punchy bass
    Featuring a dedicated, Class-D 70 watt amplifier for each woofer (plus a 2 x 30 watt amp for the top end), the LSX has got power to match the quality. Carefully matched to get the very best from the speakers, the amplifiers deliver smooth, punchy power to give these speakers the ability to get the best from all types of music. If even this isn’t enough, a dedicated sub output lets you connect your own choice of active subwoofer.

    Wi-Fi, Apple AirPlay 2 and Bluetooth 4.2 – the wireless choice is yours
    When it comes to streaming your music wirelessly, the LSX offers all the options. Stream through your network via Wi-Fi. Alternatively, use AirPlay 2 with your compatible Apple device to create a multi-room system that integrates with Siri. For the best quality Bluetooth connection, the LSX is compatible with aptX from Qualcomm – giving higher resolution sound from your smartphone or tablet.

    Connect up your TV, too
    Thanks to its optical and analogue inputs you can also connect up other sources, such as your TV, games console, CD player or turntable (with built-in pre-amp).

    Easy control with dedicated app
    Keeping this complete system under control is a dedicated app. Available for Apple iOS and Android, the app not only controls the speaker settings but also ties in with your stored music, media servers, Tidal and Spotify Connect (Spotify Premium account required), for seamless music streaming. You can also save and create custom playlists.

    Choose your style
    Available in five striking finishes, the KEF LSX looks every bit as impressive as it sounds. Choose from red, white, blue, green or black for a style that suits you. For a warmer look and feel, the speakers come wrapped in a luxury textile cloth from the Danish manufacturer, Kvadrat.

    Hear the true sound, wirelessly, with the versatile KEF LSX speakers.

    Dimension (H x W x D)

    • 240 x 155 x 180 mm (9.5 x 6.1 x 7.1in.)


    • 3.6kg (7.9lbs)
    • 3.5kg (7.7lbs))


    & frequency band

    • Dual-band 2.4GHz/5GHz
    • IEEE 802.11a/b/g/n

    Driver units

    • Uni-Q driver array:
    • HF: 19mm (0.75in.) aluminium dome
    • LF/MF: 115mm (4.5in.) magnesium/aluminium alloy cone


    • 2.4GHz/5GHz Dual-band Wi-Fi network
    • Bluetooth 4.2 with aptX® codec
    • TOSLINK Optical
    • 3.5mm Auxiliary Input
    • RJ45 Ethernet (For network)


    • Subwoofer Output
    • 5V2A DC Output

    AMplifier output power

    • LF: 70W     HF: 30W

    Bluetooth range & memory

    • 10m
    • 8 devices

    Bluetooth Frequency

    • 2.402GHz - 2.48GHz

    Bluetooth Power

    • 2.5mW (Bluetooth Class 2 Device)



    • Supports up to 192kHz/24bit


    • Wireless mode: 48kHz/24bit
    • Cable mode: 96kHz/24bit

    Master and Slave speaker

    • Wireless: Propriety 2.4GHz
    • Wired: RJ45 Ethernet
    • Depending on connection settings

    maximum outpuT(SPL)

    • 102dB

    Power Input

    • 100 – 240VAC 50/60Hz

    WIreless connectivity

    • TIDAL

    Frequency range

    • Frequency Range (-6dB)
    • Measured at 85dB/1m
    • 49Hz - 47kHz (More bass extension)
    • 52Hz - 47kHz (Standard)
    • 55Hz - 47kHz (Less bass extension)
    • Depending on speaker settings

    frequency response

    • Frequency Response (±3dB)
    • Measured at 85dB/1m
    • 54Hz - 28kHz (More bass extension)
    • 59Hz - 28kHz (Standard)
    • 69Hz - 28kHz (Less bass extension)
    • Depending on speaker settings

    Third Party Support

    • Mounting inserts for supporting wall mount
    • Supports 3rd party remote programme
    • Supports IP Control