The KEF Kube series redefines deep, immersive bass for both music and home theater experiences. Powered by the advanced Music Integrity Engine® (MIE)—KEF’s proprietary DSP technology—Kube delivers enhanced depth, dynamic output, and precision like never before. With four models ranging from the compact Kube 8 MIE to the commanding Kube 15 MIE, there’s a perfect fit for every room and setup. Easy connectivity and room EQ settings ensure seamless integration, turning every moment into an unforgettable, full-body sonic journey.
Model |
Kube 8 MIE |
Kube 10 MIE |
Kube 12 MIE |
Kube 15 MIE |
Design |
Powered Subwoofer (Sealed) |
Powered Subwoofer (Sealed) |
Powered Subwoofer (Sealed) |
Powered Subwoofer (Sealed) |
Drive units |
1 x 200mm (8in.) |
1 x 250mm (10in.) |
1 x 300mm (12in.) |
1 x 380mm (15in.) |
Frequency response |
34Hz - 140Hz (-6dB) |
24Hz - 140Hz (±3dB) |
22Hz - 140Hz (±3dB) |
20Hz - 140Hz (±3dB) |
Max output |
105dB |
111dB |
114dB |
116dB |
Amplifier type |
Class-D |
Class-D |
Class-D |
Class-D |
Amplifier power |
300W RMS |
300W RMS |
300W RMS |
300W RMS |
Variable Low Pass Filter |
40Hz - 140Hz, LFE |
40Hz - 140Hz, LFE |
40Hz - 140Hz, LFE |
40Hz - 140Hz, LFE |
Input |
RCA phono sockets Speaker level inputs Expansion port for KW1 |
RCA phono sockets Speaker level inputs Expansion port for KW1 |
RCA phono sockets Speaker level inputs Expansion port for KW1 |
RCA phono sockets Speaker level inputs Expansion port for KW1 |
Power requirements |
100-240 V ~ 50/60 Hz |
100-240 V ~ 50/60 Hz |
100-240 V ~ 50/60 Hz |
100-240 V ~ 50/60 Hz |
Power consumption |
300VA |
300VA |
300VA |
300VA |
Dimension (H x W x D) with Rear panels and Feet |
293 x 293 x 310 mm 11.5 x 11.5 x 12.2 in. |
370 x 353 x 370 mm 14.6 x 13.9 x 14.6 in. |
410 x 393 x 410 mm 16.1 x 15.5 x 16.1 in. |
519 x 500 x 515 mm 20.4 x 19.7 x 20.3 in. |
Weight |
9.4 kg |
15.4 kg |
18.6 kg |
27.5 kg |