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Kube8b Subwoofer

  • Sale
  • Regular price HK$4,980
Kube8b Powered Subwoofer is currently on pre-order and will be shipped in 2-4 weeks. You will receive a shipping confirmation email once your order is ready to be shipped.

Frequently bought together


      8 inches bass driver active subwoofer

      Don't let its compact size fool you, the Kube 8b may not take up much space but the bass it delivers is anything but small. With an 8 inches driver the Kube8b is perfect for smaller living rooms. It shares the 300 Watts Class D amp from the bigger Kubes and has iBX technology to extend the bass depth dynamically.

      Hear new dimensions in sound with Kube subwoofers

      The Kube 8b 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.
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      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.
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      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 place, 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.

      The Details


      accordion open
      (with Rear panel and feet / H x W x D)
      293 x 293 x 310mm (11.5 x 11.5 x 12.2in.)
      Powered Subwoofer (sealed)
      Power Requirements
      100V - 120V / 220V - 240V ~ 50 / 60Hz
      Unit Measurement
      Variable Low Pass Filter
      40Hz - 140Hz & LFE
      Frequency Response
      34 to 140Hz (-6dB)
      Maximum Output
      Recommended Amplifier Power
      300 Watts RMS
      Amplifier Type
      Built-in Class-D
      Drive Units
      1 x 200mm (8in.)
      RCA phono sockets Speaker level inputs
      Analogue Input
      RCA phono sockets Speaker level inputs
      KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE.. * Measurement per unit

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