12 inches bass driver active subwoofer
The Kube12b is engineered to deliver the deepest bass for music and movies, if you want to feel the earth move look no further.
Perfect for creating a deep and clean rumble in large rooms. The Kube 12b has a 300 Watts Class D amplifier and a large 12 inches driver, as well as iBX technology to dynamically extend bass depth.
Hear new dimensions in sound with Kube subwoofers
The Kube 12b effortlessly unleashes explosive power. iBX technology extends the bass depth dynamically 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.
SPECIFICATIONSWEIGHT20.6kg
DIMENSIONS(with Rear panel and feet / H x W x D)
410 x 393 x 410mm (16.1 x 15.5 x 16.1in.) DESIGNPowered Subwoofer (sealed) POWER REQUIREMENTS100V - 120V / 220V - 240V ~ 50 / 60Hz UNIT MEASUREMENTPiece VARIABLE LOW PASS FILTER
40Hz - 140Hz & LFE
FREQUENCY RESPONSE22Hz - 140Hz (±3dB)
MAXIMUM OUTPUT114dB
RECOMMENDED AMPLIFIER POWER300W RMS
AMPLIFIER TYPEBuilt-in Class-D
DRIVE UNITS1 x 300mm (12in.)
INPUTSRCA phono sockets Speaker level inputs
ANALOGUE INPUTRCA phono sockets Speaker level inputs
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