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.

Immersiveness

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.

Integration

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.

The Details

Weight

20.6kg

Dimensions

(with Rear panel and feet / H x W x D)
410 x 393 x 410mm (16.1 x 15.5 x 16.1in.)

Design

Powered Subwoofer (sealed)

Power Requirements

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

Unit Measurement

Piece

Variable Low Pass Filter

40Hz - 140Hz & LFE

Frequency Response

22Hz - 140Hz (±3dB)

Maximum Output

114dB

Recommended Amplifier Power

300W RMS

Amplifier Type

Built-in Class-D

Drive Units

1 x 300mm (12in.)

Inputs

RCA phono sockets Speaker level inputs

Analogue Input

RCA phono sockets Speaker level inputs

Document Download

User ManualInformation SheetBrochure