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KEF Kube8b Active Subwoofer

Free UK Delivery



KEF Kube8b Active Subwoofer

KEF's range of home cinema equipment spans across a number of series. This includes traditional hifi speaker packages from the company's C, Q and R series of the loudspeaker, as well as dedicated home cinema satellite + subwoofer packages like the E305 and the T305 models. Each of these packages is able to relay a level of clarity and dynamic superiority that many lesser brands desperately strive to match. When combined with your favourite films, programmes and games, these speaker packages are able to truly immerse you into the situation of the protagonist to hear and feel every emotion and slight vibration, bringing you closer to your favourite works than ever before.

The Kube8b is the first Subwoofer in KEF's new Kube range. It can be paired with a home cinema speaker system, it can also provide stunning sound as a stand-alone subwoofer with deep, accurate bass and full-bodied sound are produced thanks to the 300W class D amplifier and 8" driver.

The beauty of KEF's new Kube8b subwoofer resides not only in its aesthetic appeal but also in its unique cubed construction. You can discretely tuck it into corners, its perfect shape maximises internal volume while minimising external size. Standing at 11.5" wide x 11.5" high x 12.2" deep, the Kube8b delivers amazing 3D sound and stunning bass realism, a unique trademark which KEF has aggressively developed on throughout the years. With its sleek, compact design and uncompromised high-powered performance, the KEF Kube8b is the ideal small subwoofer for any home entertainment system. 

 Who is KEF?

KEF is a highly renowned, multi-award winning loudspeaker manufacturer whose high-quality products can be found all over the world. KEF began in Maidstone Kent in 1961 by an electrical engineer, Raymond Cooke. KEF is named after Kent Engineering & Foundry, which occupied the KEF site previously. Raymond Cooke was created OBE by Queen Elizabeth II in 1979. KEF has produced products for the BBC, and have a vast range of products at many different price points.

 Design Powered Subwoofer (sealed)
 Drive units 1 x 200mm (8in.)
 Frequency response 34Hz - 140Hz (-6dB)
 Maximum output 105dB
 Amplifier type Built-in Class-D
 Amplifier power 300W RMS
 Variable low pass filter 40Hz - 140Hz & LFE
 Inputs RCA phono sockets Speaker level inputs
 Power requirements 100V - 120V / 220V - 240V ~ 50 / 60Hz
 Dimension (H x W x D) with rear panel and feet 293 x 293 x 310mm (11.5 x 11.5 x 12.2in.)
Weight 11.3kg


UK Delivery

Providing your item is in stock, the order is usually dispatched within 24 hours. Postage and packing is completely free for orders over £100*. Out of stock items will be dispatched as soon as they become available, which can take between 4 to 21 days      

UK Delivery orders are sent via our couriers' DPD Local on a next-day-delivery service and usually take between 1 and 3 days. 


Local Delivery

Certain manufacturers disallow mail order for their products, however a local delivery may be possible.

We offer a local delivery service for a large number of our products. After your order has been placed, a member of the Hifi Gear team will contact you to arrange a convenient date and time for your local, personal delivery.


Click & Collect

We offer a free ‘Click & Collect’ service on all items. As soon as your order has been completed and is ready for collection a member of our team will be in contact with you. Orders can be collected from our store at 11 King Street, Hereford, HR4 9BW.


Please use this link to find more detailed delivery information or contact us for more details