KEF Kube 15 MIE, Active subwoofer

The largest model in the Kube range, the Kube 15 MIE is designed to deliver powerful bass reproduction for music and cinema lovers alike. It features a 15-inch speaker and a 300W (RMS) Class-D amplifier that combine to produce deep, immersive sound, ideal for larger spaces. Using the Music Integrity Engine®, the Kube 15 MIE guarantees impeccable bass depth and dynamics for an immersive audio experience.

- Frequency range: 20Hz - 140Hz (±3dB)
-Power: 300W RMS
- Class D integrated amplifier
- Dimensions: 519 x 500 x 515 mm / weight 27.5 kg

Seamless elegance
The sealed cabinet design facilitates optimal placement, while the contemporary design blends seamlessly with the room's decor.

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 provide 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.

Versatile immersion
The largest model in the Kube range with the highest output, perfect for movies, music, TV and gaming in larger rooms and dedicated home theaters.

Effortless wireless integration
The KW1 enables optimal placement of the Kube without being limited by cables. High-quality wireless transmission ensures the delivery of every nuance and impact from your favorite movies and music.

Well connected
Kube offers versatile connection options, including KEF SmartConnect and speaker level inputs, making connecting into any system a breeze.

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

Multiple power modes
'Auto wake up' detects audio signals for instant readiness, 'Always on' mode keeps it ready to play instantly, and '12V trigger' provides automatic wake-up.

Design
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
Input
RCA phono sockets
Speaker level inputs
Expansion port for KW1
Power requirements
100 - 240V, 50/60 Hz
Power consumption
300 VA
Dimension (H x W x D) with rear panel and feet
519 x 500 x 515 mm
(20.4 x 19.7 x 20.3 in)
Weight
27.5 kg

User manual (EN)