• KEF SP3959AA Q350 Bookshelf Speakers White

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    • Overview
    • Specifications & manuals
    • Reviews
    • Legendary service
    • Delivery, services & returns
    • Questions & answers

    Overview

    Treat yourself to auditory magic with the KEF Q350 Bookshelf Speakers, radiating with a rich sound that is almost beyond belief. A minimalistic white exterior allows these speakers to fold unobtrusively into your home, resting amongst your books, plants, collectibles and more. Become captivated from the very first note that emanates from within this unit.

    Holding pride of place within the interior of the Q350 is KEF’s signature Uni-Q driver array. Placing the tweeter at the acoustic centre of the bass and midrange cone results in greater sound dispersion and consistency across all frequencies. The Tangerine Waveguide, mounted in front of the tweeter dome increases the stability and dispersion of sound created by the Uni-Q driver. Ensuring that you get the best sound possible, the Uni-Q driver has been repositioned to the centre of the cabinet to reduce internal resonance and sharpen audio detail.

    A damped tweeter loading tube improves treble performance by eliminating sound produced from the back of the tweeter. This is combined with the Computational Fluid Dynamics port design, improving the clarity of your audio by reducing the audibility of midrange leakage through the port. And finally, a low-distortion inductor on the crossover provides tight, dynamic bass that stays with you long after the last note has faded.
    Uni-Q Driver

    Using the power of NASA-developed magnets, KEF was able to develop a tweeter small enough to mount at the acoustic centre of the bass unit voice coil. This results in consistent and wide sound dispersion.

    Bass Port

    A flared port located at the rear of this unit amplifies the earth-rumbling bass tones of your audio, adding low tones you can truly feel.

    Hi-Res Audio

    This unit is a Hi-Res Audio device, which allows it to play a variety of 24-bit digital audio formats. This simply means you can take full advantage of high-quality audio sources like FLAC audio files.

    Contemporary Design

    Sleek elegance meets outstanding sound thanks to the practical minimalism of this unit. The smooth baffle and the patented Uni-Q shows off this unit's premium status.

    Specifications & manuals

    key Specifications
    Brand
    KEF
    Finish Colour
    White
    Height (mm)
    358 mm
    Width (mm)
    210 mm
    Depth (mm)
    306 mm
    Model Number
    SP3959AA
    Weight (kg)
    7.6 kg
    Accessories included
    Magnetic Cloth Grille, Adhesive Non-slip Rubber Feet, Foam Baffle for Bass Port, User Manual
    warranty
    Manufacturer Warranty
    5 Years
    Use
    Not intended or designed for commercial use.
    audio
    Speaker Channels
    2
    Input Power
    120 W
    Frequency Response Range
    63 - 28,000
    Maximum Output
    110 dB
    Impedance
    8
    Sensitivity
    87
    Speaker Drivers
    165mm Uni-Q Woofer with 25mm Vented Aluminium Dome Tweeter
    additional Dimensions
    Package Dimensions (H x W x D)
    490 x 444 x 607
    Package Weight (kg)
    18.3

    Reviews

    Rating snapshot

    5
    2
    4
    0
    3
    0
    2
    0
    1
    0

    Average customer rating

    Overall
    5.0
    Ease of setup
    5.0
    Build quality
    4.5
    Value of product
    4.5

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    Pros
    1-2 of 2 reviews
    Jason2020-07-14
    Base monsters
    Great speaker , what HIFI give it 5 stars I can see why ... They do need a good amp, I pumped a sonos amp through them and it powered them fine. A little clinical , they would sound better through a audiophile amp no doubt but these hold very strong. The base is awesome , tone it down with cone mufflers supplied if needed. I plugged in my old pair of q acoustic 20's and straight away it was day and night with these speakers . Liked how AO rang me to say the speaker covers where included as well and sent them separate , great service.
    Build quality
    4.0
    Ease of use
    5.0
    Value of product
    4.0
    Jonstr2019-10-07
    High end sound affordable
    Kef have given us a beautiful speaker, Iam enjoying its clarity , presence immensely, they're working a treat as monitors for my Yamaha MOD -x8 synthesizer , fantastic sound for cfx pianoand the Bosendorfer Imperial grand.
    Build quality
    5.0
    Ease of use
    5.0
    Value of product
    5.0

    Legendary service

    The Appliances Online Net Promoter Score (NPS) is based on feedback from 89,897 people, collected between August 2024 to August 2025. Learn more about the Net Promoter Score (NPS).
    Efficient service our appliance arrived today
    Julie,
    Hassle free shopping at its finest
    Carol, St Lucia, QLD
    You saved me money
    Trish, Australia

    Delivery, services & returns

    Appliances Online is all about legendary service. We offer free next business day delivery, free connection, free removal and free recycling, and we even offer Saturday delivery and, in some locations, a Premium Delivery option that allows you to choose your own 2-hour delivery window.

    Questions & answers

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