KEF Kube8 Subwoofer

Model: KUBE8B

SKU: 338977 Product ID: 245611

  • 300 Watt Class D amplifier with DSP preamplifier/EQ
  • iBX Intelligent Bass Extension
  • Placement tuning presets for: Free standing, Wall/in-cabinet and Corner

  + delivery from $29.00

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    Discover sound’s hidden depths with KEF Kube subwoofers. The Kube unleashes explosive power intelligently thanks to iBX technology that extends bass depth dynamically. Delivering immersive music and home theatre sounds that drive you deeper into the heart of the performance. The Kube 8b features an 8" bass driver powered by a 300 watt RMS bespoke class D amplifier and 3 custom EQ settings for easy placement.

    Explore new dimensions in sound with Kube, KEF’s powerful range of subwoofers that open up sound’s hidden depths. Each elegantly designed, fully sealed unit unleashes explosive power effortlessly, intuitively, intelligently. iBX technology extends the bass depth dynamically, unlocking the full potential of the driver’s power at normal listening levels or even the most extreme. And with KEF’s unique capability to design, build and integrate the driver in-house, it takes optimisation to a whole new level. Delivering immersive music and home theatre sounds that drive you deeper into the heart of the performance.

    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
    Your room, your rules. Kube subwoofers offer unmatched flexibility in configuration. With a range of LFE, line & speaker-level inputs, Phase selection and 3 DSP controlled EQ settings to help match your sub to any room placement, you’re in control right out of the box. Set up the Kube where it’s most convenient to you, match it to any main speaker or with any type of music system and start exploring new depths in your sound. 

    We’re on the same page. KEF is quite possibly the only high-end manufacturer who designs, engineers and assembles the driver, cabinet and circuitry in-house. This level of integration is the hallmark of our commitment to pure sound and the Kube stays true to that ideal. What you get is a driver and amplifier so perfectly attuned they sing in absolute harmony.

    Key Features

    56bit 50 MIPS DSP preamplifier

    iBX Intelligent Bass Extension

    KEF smartConnect intelligent inputs automatically detect mono or stereo and adjust the subwoofer volume level accordingly

    Sealed for greater accuracy and delicate musical detail while allowing the Kube subwoofers to be installed in a cabinet

    Placement tuning presets for: Free standing, Wall/in-cabinet and Corner

    300Watt Class D amplifier with DSP preamplifier/EQ

    Drive Units: 1 x 200mm (8in.)
    Frequency Range: 34Hz - 140Hz (-6dB)
    Maximum Output: 105dB
    Amplifier Type: Built-in Class-D
    Output Power: 300W RMS
    Variable Low Pass Filter: 40Hz - 140Hz & LFE
    Analogue Input: RCA phono sockets; Speaker level inputs


    Speaker Type - Subwoofers

    Finish colour - Black

    Watts (Total) - 300

    Manufacturer's warranty - 1 Year

^Discounts apply to most recent previous ticketed/advertised price. As we negotiate on price, products are likely to have sold below ticketed/advertised price in stores prior to the discount offer.