KEF Kube 10b 10 inch Subwoofer
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KEF Kube 10b 10 inch Subwoofer KEF Kube 10b 10 inch Subwoofer

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KEF Kube 12b 12 inch Subwoofer

KEF Kube 12b 12 inch Subwoofer

KEF Kube 8b 8 inch Subwoofer

KEF Kube 8b 8 inch Subwoofer

KEF Kube 10b 10 inch Subwoofer

10 Inches Bass Driver Active Subwoofer

The mid-sized Kube 10b has a sealed cabinet, 10 inches bass driver and 300 Watts to produce serious extension and control.

The latest addition to KEF's powerful range of subwoofers opens up sound’s hidden depths thanks to 300 Watts of Class D power integrated with a 10 inches driver and iBX dynamic bass extension technology.

Special Price $1,140.00 Regular Price $1,295.00


Hear new dimensions in sound with Kube subwoofers

The Kube 12b effortlessly unleashes explosive power. iBX technology dynamically extends bass depth and KEF’s unique ability to design, build and integrate the driver in-house takes optimisation to a whole new level. Delivering immersive music and home theatre sound that takes you to the heart of the performance.

WINNER Best Product EISA 2018/19 Awards

The deep rumble in your big living room. With a large 12-inch driver, the Kube12b is the largest of the family. Delivering a deeper bass for large rooms.


Go deep or go home. KEF’s design and engineering team worked in chorus to develop iBX. This Intelligent Bass Extension algorithm creates an extended depth that unlocks the full potential of the custom driver. Giving you unparalleled precision and ultimate synchronicity between amplifier, driver and sealed cabinet.

Easy configuration

Kube subwoofers offer unmatched set up flexibility. A range of LFE, line and speaker-level inputs, phase selection and DSP controlled EQ settings help you get the best from a Kube. Put it in a convenient position, match it to any main speaker or type of music system, and start exploring new depths in the sound.



KEF is quite possibly the only high-end manufacturer that designs, engineers and assembles the driver, cabinet and circuitry in-house. This level of integration means we are commited to pure sound and the Kube stays true to that ideal. The result is a driver and amplifier that are perfectly in tune.

Model Kube10b
Design Powered Subwoofer (sealed)
Drive Units 1 x 250mm (10in.)
Frequency Response 24Hz - 140Hz (±3dB)
Maximum Output 111dB
Inputs RCA Phono sockets. Speaker level inputs
Amplifier type Built-in Class-D
Recommended Amplifier Power 300W RMS
Variable low pass filter 40Hz - 140Hz & LFE
Analogue Input RCA phono sockets Speaker level inputs
Power requirements 100V - 120V / 220V - 240V ~ 50 / 60Hz
Dimensions (with Rear panel and feet / H x W x D)
370 x 353 x 370mm
Weight 17.4kg
Unit measurement Piece

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