





SPECIFICATION
Weight
17.4kg
Dimensions
(with Rear panel and feet / H x W x D)
370 x 353 x 370mm (14.6 x 13.9 x 14.6in.)
Design
Powered Subwoofer (sealed)
Power Requirements
100V – 120V / 220V – 240V ~ 50 / 60Hz
Unit Measurement
Piece
Variable Low Pass Filter
40Hz – 140Hz & LFE
Frequency Response
24 to 140Hz (±3dB)
Maximum Output
111dB
Recommended Amplifier Power
300 Watts RMS
Amplifier Type
Built-in Class-D
Drive Units
1 x 250mm (10in.)
Inputs
RCA phono sockets Speaker level inputs
Analogue Input
RCA phono sockets Speaker level inputs
Explore the KEF Kube10b 300W Subwoofer in Black at KDH Electrical—a mid-sized powerhouse boasting a sealed cabinet, a 10-inch bass driver, and 300 Watts of power for exceptional extension and control.
Dynamic 10-Inch Active Subwoofer
The Kube 10b, a mid-sized marvel, features a sealed cabinet, a robust 10-inch bass driver, and 300 Watts of power—combining to deliver substantial extension and precise control. This member of KEF’s formidable subwoofer lineup delves into the hidden depths of sound with its Class D power and innovative iBX dynamic bass extension technology.
Unleash New Dimensions in Sound with Kube Subwoofers
The Kube 10b effortlessly releases explosive power, showcasing the prowess of iBX technology. This Intelligent Bass Extension algorithm dynamically extends bass depth, while KEF’s unique in-house design, construction, and integration of the driver take optimization to new heights. The result is an immersive audio experience for both music and home theater, transporting you to the heart of the performance.
Immersiveness Redefined
Delve deep or stay home—KEF’s design and engineering team collaborated to develop iBX, an Intelligent Bass Extension algorithm that unlocks extended depth, realising the full potential of the custom driver. This innovation ensures unparalleled precision and ultimate synchronicity between amplifier, driver, and the sealed cabinet.
Effortless Configuration
Kube subwoofers provide unmatched setup flexibility. With various LFE, line, and speaker-level inputs, phase selection, and DSP-controlled EQ settings, the Kube adapts seamlessly to your preferences. Place it conveniently, pair it with any main speaker or music system, and embark on a journey to discover new depths in sound.
Perfect Integration
As possibly the only high-end manufacturer handling the design, engineering, and assembly of the driver, cabinet, and circuitry in-house, KEF is committed to pure sound. The Kube exemplifies this commitment, resulting in a driver and amplifier perfectly in tune for an authentic audio experience.
| Weight | 17.4 kg |
|---|---|
| Dimensions | H: 37 x W: 35.3 x D: 37 |
| Brand | KEF |
| Colour | Black |
| Noise Level (dB) | 111 |
| Smart Appliance | No |
| SKU | KUBE10B |
| GTIN | 637203215315 |

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