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Key Features
The KEF Kube 8 MIE Subwoofer is a compact eight-inch active sub and the smallest of KEF's Kube MIE range. It's designed for smaller spaces like gaming rooms, offices, or small lounge areas and easily fits around desks and other furniture. Kube 8 is enhanced by KEF's new proprietary Music Integrity Engine (MIE); a set of DSP algorithms which optimise performance for increased depth and dynamics. With MIE and a 300-watt Class D amplifier, you can expect heightened accuracy and full-bodied sound even at high volumes. Refine your hi-fi, home cinema or gaming system's bass performance with intuitive room position EQ settings, SmartConnect (to detect mono and stereo signals automatically), and various auto-power modes.
Product Ref: 293106
Get match-ready sound for a summer of on-screen action. Claim £75 cashback on the KEF Kube 8 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 enclosure) |
|---|---|
| Drive units | 1 x 200mm (8 inches) |
| Frequency response | 34Hz - 140Hz (±6dB) |
| Max output | 105dB |
| Amplifier type | Built-in Class D |
| Amplifier power | 300W RMS |
| Variable low pass filter | 40Hz - 140Hz, LFE |
| Inputs | RCA phono socketsSpeaker level inputsExpansion port for KW1 |
| Power requirements | 100 - 240 V 50/60 Hz |
| Power consumption | 300VA |
| Dimensions | 293 x 293 x 310 mm (11.5 x 11.5 x 12.2 inches) |
| Weight | 9.4 kg |
| Product code | SP4073B0BA |
| EAN | 637203050275 |