12-inch active subwoofer

The KEF KUBE12B Subwoofer is designed to deliver the deepest bass for music and movies, if you want to fully experience the low end, look no further.

Perfect for creating deep and clean thunderous lows in large spaces. The Kube 12b has a 300 Watt class D amplifier and a large 12-inch bass unit, with iBX technology to make the low frequency reproduction extra dynamic.

Experience new dimensions in sound with Kube subwoofers.

The Kube 12b effortlessly unleashes explosive power. iBX technology dynamically extends the low frequency reproduction and KEF's unique ability to design, build and integrate the driver in-house takes optimization to a whole new level. Inspiring immersive music and home theater sound that takes you to the core of the performance.

Immersion.

Go deep or go home. KEF's design and engineering team worked together to develop iBX. This Intelligent Bass Extension algorithm creates an extended depth that unlocks the full potential of the driver. The result is unparalleled precision and ultimate collaboration between amplifier, driver, and enclosure.

Easy setup.

Kube subwoofers offer unparalleled flexibility and fit optimally into any imaginable music system: a range of LFE, line, and speaker-level inputs, phase selection, and DSP-controlled EQ settings help you get the most out of a Kube. Place the sub in a convenient location for you and start exploring new depths in reproduction.

Integration.

KEF may be the only high-end speaker manufacturer that designs, engineers, and assembles the driver, enclosure, and circuits in-house. This level of integration means that we are dedicated to pure sound and that the Kube remains true to that ideal. The result is a driver, enclosure, and amplifier that are perfectly matched to each other.