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Key Features
The KEF Kube 12 MIE Subwoofer is perfect for larger rooms and dedicated home theatres, featuring a 12-inch driver powerful by a 300W Class D amplifier. It's an outstanding choice for anyone craving deep and impactful bass to emphasise their favourite music, TV, games and movies. Featuring KEF's proprietary Music Integrity Engine, comprising in-house coded DPS algorithms, the Kube 12 MIE ensures accurate and dynamic bass reproduction at any volume. With seamless system integration via a variety of connection options and its wireless capability using the KEF KW1 (sold separately), setting up for the perfect sound experience is effortless.
Product Ref: 293102
Get match-ready sound for a summer of on-screen action. Claim £100 cashback on the KEF Kube 12 MIE subwoofer when you purchase from AV.com between 7 May and 2 July 2026. Click here to visit the KEF promotion page, where you can submit your claim and view the full T&Cs. Applications open from 6 June 2026 and close on 19 August 2026.
| Design | Powered Subwoofer (Sealed) |
|---|---|
| Drive units | 1 x 300mm (12in.) |
| Frequency response | 22Hz - 140Hz (±3dB) |
| Max output | 114dB |
| Amplifier type | Class-D |
| Amplifier power | 300W RMS |
| Variable low pass filter | 40Hz – 140Hz, LFE |
| Input | RCA phono socketsSpeaker level inputsExpansion port for KW1 |
| Power requirements | 100 - 240V, 50/60 Hz |
| Power consumption | 300VA |
| Dimension (H x W x D) with rear panel and feet | 410 x 393 x 410 mm (16.1 x 15.5 x 16.1 in) |
| Weight | 18.6kg |
| Product code | SP4075B0BA |