KEF Kube 10b Subwoofer

Our Price £519.00 RRP £650.00 Save: £131.00
Impressive flexibility and Intelligent Bass Extension iBX technology makes the KEF Kube 10b Subwoofer the perfect addition to your home cinema setup, offering a deep and powerful bass response.

The brand new KEF Kube 10b Subwoofer has been beautifully designed to implement a fully-sealed unit that will effortlessly produce explosive power. iBX technology has been incorporated within this subwoofer in order to extend the bass depth dynamically; this will open up the full potential of the powerful driver at both regular and intense listening levels.

Offering the most immersive listening experience possible, this subwoofer has been designed in-house by the KEF engineering and design teams. Working in tandem, these two teams have been able to develop iBX  (Intelligent Bass Extension) technology. Using the Intelligent Bass Extension algorithm, this technology will create an extended depth in order to unlock the true potential of this subwoofer’s custom driver. iBX will offer unparalleled precision and synchronicity between the amplifier, driver, and sealed cabinet.

The KEF Kube 10b offers impressive flexibility in its configuration, with a wide range of LFE , line and speaker-level inputs available to you. With phase selection and 3 DSP controlled EQ settings, this subwoofer will match performance against any kind of room placement.

  • Designed in-house by KEF engineering and design teams
  • Features iBX intelligent bass extension technology
  • Wide range of LFE, line and speaker-level inputs
  • 3 DSP controlled EQ settings
  • Phase selection
More Information
Product Specifications


1 x 250mm (10in.)


24 to 140Hz (±3dB)




RCA Phono sockets. Speaker level inputs

AMPLIFIER TYPE              

Built-in Class-D


300W RMS


40Hz - 140Hz & LFE


RCA phono sockets Speaker level inputs


100V - 120V / 220V - 240V ~ 50 / 60Hz


Standard - H x W x D:

370 x 353 x 370mm

With rear panel and feet - H x W x D:

14.6 x 13.9 x 14.6”



Your Delivery:

Orders received before 1:00 pm* will be despatched the same day and can be delivered for next working day, (except bank holidays).  For you convenience you can choose multiple shipping options on the checkout page. We will also email with your tracking and dispatch information.

30 Day Returns Policy

HiFix is committed to selling quality products which we hope you will love, we do understand, however, that there maybe a time when you need to exchange or return something you have bought. We really do hope you are pleased with your purchase but should you wish to return anything bought from us, we will be happy to refund or exchange a product within 30 days.

NameSKUQtyLead time
KEF Kube 10b Subwoofer430052In Stock for Immediate Dispatch

Warranty information for KEF:


KEF products are designed and manufactured to the highest quality standards. However, if something does go wrong with the product we are here to help. From your date of purchase your product is warranted against faulty materials or workmanship for a period of 24 Months on Speaker Stands, 12 Months on Amplifiers, 60 Months On Speakers and 24 Months on Custom Install speakers.

This guarantee applies to all Kef Products including 5.1 home cinema speaker systems, book shelf speakers, rear speakers, award winning floor standing speakers, sound bars and sub woofers. Providing you with peace of mind and the assurance of premium Quality.

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