KEF Kube 10b

300 watt subwoofer with 250 mm speaker

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Elegantly designed, fully enclosed and effortlessly and intelligently delivering explosive power, the KEF Kube 10b subwoofer takes you to a new dimension of sound!

300 watt subwoofer with 250 mm speaker

Overview

Enter the unexplored depths of sound



Elegantly designed, fully enclosed and releasing explosive power effortlessly and intelligently, the KEF Kube 10b subwoofer takes you to a new dimension of sound! At any listening level, iBX technology dynamically increases the depth of bass. And thanks to the unique design, construction and integration of its drivers, KEF offers unrivalled acoustic optimisation. Experience a more intense home theatre experience by being right in the middle of the action with this 300W RMS active enclosed subwoofer.


Total immersion


KEF 's design and engineering team worked together to develop iBX. This Intelligent Bass Extension algorithm creates extended depth that unleashes the full potential of the purpose-built speaker. Giving you unparalleled precision and optimum synchronicity between the amplifier, speaker and enclosure.

For a bespoke design, KEF designs, engineers and assembles the drivers, cabinet and circuitry in-house. This is a strong commitment from the brand that results in a speaker and amplifier that are so perfectly matched that they sing in absolute harmony.


Great listening freedom


This Kube subwoofer offers complete flexibility of configuration. With a set of LFE, line and speaker inputs, phase selection and 3 DSP-controlled EQ settings to help you match your sub to any room placement, you're in complete control.

Place the Kube anywhere you like, pair it with any main speaker or music system and discover new depths of sound.


Main features:

  • Enclosed active subwoofer
  • Driver: 1 x 250 mm
  • Built-in class-D amplifier
  • Amplifier output power: 300W RMS
  • iBX Technology - Intelligent Bass Extension
  • Dynamically increases bass depth
  • RCA speaker level input
  • Complete freedom of installation
  • High-End Manufacturing: KEF Manufacturing
  • Dimensions: 370 x 353 x 370 mm
  • Weight: 17.4 kg
Logistics information : This product is available in the following locations: France, Belgium, Switzerland, Luxembourg, Monaco.
Specifications
Select your criteria

General information

Product name

KEF Kube 10b

Brand

Kef

Model

SP3940BA

Design

Speaker type

Subwoofer

Wireless

No

Bluetooth

No

Load type

Close

Performance

Admissible power

200 W

Réponse en fréquence (min)

24 Hz

Frequency response (max)

140 Hz

Sensitivity (for 1W at 1m)

114 dB

Physical characteristics

Width

353 mm

Height

370 mm

Depth

370 mm

Weight

17.4 kg

Color

Black

Subwoofer

Subwoofer type

Active

Subwoofer power

200 W

Subwoofer bandwidth (Min frequency)

27 Hz

Subwoofer bandwidth (Max frequency)

125 Hz

Subwoofer speaker(s)

Bass 250mm

Subwoofer weight

16.8 kg

Warranties

Commercial warranty

Seller 3 years

Legal warranty

See terms & conditions

Product referenced on 14 Nov 2017

Customer review
Global rating
10/10
based on 1 review Editorial and moderation guide
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  • by knarf
    Posted on 25 Sep 2020
    Product bought from LDLC on 28 Aug 2020
    Number of reviews: 5 Average rating: 9

    Pure bass

    As good as the speakers, this subwoofer delivers a powerful, deep and clean bass, bravo kef.

    Review automatically translated

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