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KUBE 10b Subwoofer

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 10b features a 10" bass driver powered by a 300 watt RMS bespoke class D amplifier and 3 custom EQ settings for easy placement.
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Product Features
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, we take optimisation to a whole new level. Delivering immersive music and home theatre sounds that drive you deeper into the heart of the performance.
KEF KUBE Subwoofer Line
KEF Kube Subwoofer Front 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

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.
KEF KUBE Subwoofer Control Panel
KEF Kube Subwoofer Integration Integration

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.
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
Reviews 2

Customer Reviews

  1. Most musical sub!
    I have a larger, more powerful subwoofer from another manufacturer in my main system. I needed a more compact one for my office setup, to augment my KEF LS50's. I'm shocked at the quality of this unit's sound. It's fast attack and rapid decay is rare in a sub at this cost level, making it a bargain. It absolutely pounds me when asked, keeping right up with the LS50's in seamless harmony. I now want to replace the one on my main system with it's bigger brother, the Kube 12b!

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  2. Great speaker
    This review is for the Kube2. Excellent base response and customization options. Side firing speaker opens up a lot more possibilities for locating speaker in the room

    Review by

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Model Kube10b Subwoofer
DESIGN Powered Subwoofer
DRIVE UNITS 1 x 250mm (10in.)
FREQUENCY RANGE 24 to 140Hz (±3dB)
ANALOGUE INPUT RCA phono sockets
Speaker level inputs
POWER REQUIREMENTS 100V - 120V / 220V - 240V ~ 50 / 60Hz
DIMENSIONS (with Rear panel and feet / H x W x D)
370 x 353 x 370mm (14.6 x 13.9 x 14.6in.)
WEIGHT 17.4kg

** KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE. **

Press and Awards
KEF KUBE10b Home Theater Subwoofer Review on What HiFi KUBE 10b Subwoofer in 5.1 Speaker Review
 "These speakers have little trouble blistering through the trigger-happy car chase of the opening scenes - they use every ounce of their muscle to pin us back into the sofa.”
Year: 2017
Magazine / Issuing Body: What Hi*Fi?
Country: United Kingdom
Product: KEF Q350 Bookshelf Speaker Pair, Q650c Center Channel, KUBE10b Subwoofer
Read full review.
KUBE 8b/10b/12b Subwoofer Information Sheet Open In New Window

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