KEF Kube 15 MIE 15 Inch Subwoofer


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Kube 15 MIE, the largest model in the Kube range, is engineered to provide the deepest bass for music and movies, giving you a ground-shaking immersion. Perfectly suited for large rooms, the 15-inch driver and 300W (RMS) Class D amplifier combine to deliver the most visceral bass performance. With Music Integrity Engine®, the Kube 15 MIE is optimised to deliver exceptional depth and dynamics



Music Integrity Engine® (MIE)

KEF‘s proprietary DSP (Digital Signal Processing) algorithms ensure that every component of the subwoofer works in perfect harmony. Features such as iBX Intelligent Bass Extension provides even deeper and precise bass at any listening level.

Feel the force

The Kube features a front-firing long throw driver with a large cone area and high excursion, delivering higher output at lower frequencies. Its efficient and cool-running 300W Class D RMS amplifier further enhances performance.

3 room position EQ options

The intuitive preset options ensure excellent performance from Kube no matter where in the room it is placed.

Easy configuration
Kube subwoofers offer unmatched set up flexibility. A range of LFE, line and speaker-level inputs, phase selection and DSP controlled EQ settings help you get the best from a Kube. Put it in a convenient place, match it to any main speaker or type of music system and start exploring new depths in the sound.

KEF is quite possibly the only high-end manufacturer that designs, engineers and assembles the driver, cabinet and circuitry in-house. This level of integration means we are committed to pure sound and the Kube stays true to that ideal. The result is a driver and amplifier that are perfectly in tune.

  • Powered Subwoofer (Sealed)
Drive units
  • 1 x 380mm (15in.)
Frequency response
  • 20Hz - 140Hz (±3dB)
Max output
  • 116dB
Amplifier type
  • Class-D
Amplifier power
  • 300W RMS
Variable low pass filter
  • 40Hz – 140Hz, LFE
  • RCA phono sockets
  • Speaker level inputs
  • Expansion port for KW1
Power requirements
  • 100 - 240V, 50/60 Hz
Power consumption
  • 300VA
Dimensions (with rear panel and feet)
  • 519mm Height
  • 500mm Width
  • 515mm Depth
  • 27.5kg

Additional information

Weight 29 kg
Dimensions 60 × 59 × 59 cm