KEF Kube 12 MIE

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KEF Kube 12 MIE Subwoofer

12-inch front-firing active subwoofer

Kube 12 MIE is designed to deliver rich and powerful bass, creating a heart-pounding rumble for your favourite music and movies. It features a large 12-inch driver and a 300 Watts Class D amplifier. With Music Integrity Engine®, the Kube 12 MIE is optimised to deliver outstanding level of depth and dynamics.

KEF Kube 12 MIE Subwoofer

Seamless elegance

The sealed cabinet design facilitates optimal placement, while the contemporary design seamlessly blends with the room's decor.

KEF Kube 12 MIE Subwoofer

Music Integrity Engine® (MIE)

KEF‘s proprietary DSP (Digital Signal Processing) algorithms ensure that every component of the subwoofer works in perfect harmony. Features such as iBX Intelligent Bass Extension provides even deeper and precise bass at any listening level.

KEF Kube 12 MIE Subwoofer

Feel the force

The Kube features a front-firing long throw driver with a large cone area and high excursion, delivering higher output at lower frequencies. Its efficient and cool-running 300W Class D RMS amplifier further enhances performance.

KEF Kube 12 MIE Subwoofer

Versatile immersion

The second large model in the Kube range, perfect for movies, music, TV and gaming in larger rooms and dedicated home theatres.

KEF Kube 12 MIE Subwoofer

Effortless wireless integration

The KW1 enables optimal placement of the Kube without being limited by cables. High-quality wireless transmission ensures the delivery of every nuance and impact from your favourite movies and music.

KEF Kube 12 MIE Subwoofer

Well connected

Kube offers versatile connection options, including KEF SmartConnect and speaker level inputs, making connecting into any system a breeze.

KEF Kube 12 MIE Subwoofer

3 room position EQ options

The intuitive preset options ensure excellent performance from Kube no matter where in the room it is placed.

KEF Kube 12 MIE Subwoofer

Multiple power modes

'Auto wake up' detects audio signals for instant readiness, 'Always on' mode keeps it ready to play instantly, and '12V trigger' provides automatic wake-up.

KEF Kube 12 MIE Subwoofer

There are subwoofers…
and there are KEF subwoofers.

Take home the immersive power of deep detailed bass with unrivalled acoustic accuracy that drops you right into the heart of the action. Over 60 years of innovation in crafting award-winning speakers has made us an authority in sound, and our subwoofer range brings home the visceral experience of modern immersive sound like no other for movies, gaming, music, and streaming.


DesignPowered Subwoofer (Sealed)
Drive units1 x 300mm (12in.)
Frequency response22Hz - 140Hz (±3dB)
Max output114dB
Amplifier typeClass-D
Amplifier power300W RMS
Variable low pass filter40Hz – 140Hz, LFE
InputRCA phono sockets
Speaker level inputs
Expansion port for KW1
Power requirements100 - 240V, 50/60 Hz
Power consumption300VA
Dimension (H x W x D) with rear panel and feet410 x 393 x 410 mm
(16.1 x 15.5 x 16.1 in)

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