KW1 Wireless Subwoofer Adapter Kit

  • Limited offer
  • Regular price £100 / piece
Tax included.

Wireless Subwoofer Adapter Kit

Comprising a discreet transmitter and receiver, KEF KW1 works with the Kube, KC62 and KC92 subwoofers. It allows KEF subs to be optimally placed, and not limited by cables. High-quality wireless transmission delivers every ounce of detail and impact from your favourite films and music.

The receiver is also available separately, allowing two KEF subwoofers to receive the same signal wirelessly from the same transmitter.

Performance with convenience

KW1 operates in the high-bandwidth 5GHz band and delivers audio up to 24bit/48kHz. The transmitter is powered by USB, while the receiver is powered directly by the subs expansion port. Pairing is intuitive and highly stable, while a range of up to 30m (line of sight) makes placement easy. KW1 is also perfectly suited for use with KEF's LSX II LT, LSX II, LS50 Wireless II and LS60 Wireless.
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The Details


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Lossless Audio
5.2 & 5.8GHz selectable digital wireless link for near lossless audio
Advanced Algorithm
Advanced RF Selection Algorithm
Wide Range
Up to 15 metre (30M/ 100 ft line of sight) operational distance between transmitter and receiver
Low Latency
Designed with latency of <17ms
High Performance
24-bit 48KHz high resolution audio for pristine performance


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Radio Frequency

5.2GHz and 5.8GHz

Sampling Rate

24bit, 48KHz



Link Distance

Max 100ft (Line of Sight)

Frequency Response




Transmitter Power Input

5V DC 1A

Audio Output Level


Transmitter Input Level


Total Harmonic Distortion


Dimension H x W x D

21.4 x 72 x 79.5mm

27 x 37 x 72mm
KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE.

Customer Reviews

Based on 3 reviews
Paul Jones (Lancing, GB)
Pricey but Simple solution for clutter free installation

The addition of this bespoke wireless transmitter and receiver allows you to position your sub in any position (assuming a local power socket available) without the need to run a cable from the AV component to the sub. Simple installation and pairing. Instructions could be more explicit about required signal level (volume) required to bring the sub out of standby. Other than that it works flawlessly for me and a great solution despite the cost!

M.C. (Abergavenny, GB)
Possibly a great item, but an astonishingly bad product package

I haven't actually got to test it yet, so this review is based purely on the out-of-box experience. I bought this to pair with a new set of LSX ii speakers, which have a USB-C port and a female subwoofer RCA port. So this item, sold to connect LSXii speakers to a KEF sub, is sold with....a USB-A charging cable and a subwoofer splitter cable with FEMALE connection. So, straight out of the box, it is impossible to connect the transmitter to a set of KEF LSX ii speakers either for transmission or charging. Now, I am a card-carrying KEF fanboy and have owned KEF speakers for about 10 years. I love them. But this is just....mind-blowingly dumb. I'm stunned. £200 for a wireless connection kit that is supplied with incompatible cables that make it impossible to connect without shelling out even more for the right cables. Come on KEF, you're better than this, surely?

S.L. (Radovljica, SI)
Not compatible to LSX II out of the box

Doesn't come with cables to be powered by LSX II. So it is not really an out of the box solution for KEF's own system.

Hi Samo,

We are sorry that you have had issues setting up your KEF system.

As a goodwill gesture, we would be happy to supply a USB-C to Micro-USB cable to you.
Please follow up with your address details to our customer services team and we will get our support team to dispatch the cable to you.

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