KEF Kube 15 MIE Subwoofer
The KEF Kube 15 MIE, the largest model in the Kube subwoofer 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 EngineĀ®, the Kube 15 MIE is optimised to deliver exceptional depth and dynamics.
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.

Music Integrity EngineĀ®(MIE)
KEFās 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.Ā 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 and is suitable for rooms sized 15 ā 70m².
Specifications
| 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 ā 140Hz, LFE |
| Input: |
RCA phono sockets
Speaker level inputs Expansion port for KW1 |
| Power requirements: | 100 - 240V, 50/60 Hz |
| Power consumption: | 300VA |
| Dimension (H x W x D) with rear panel and feet: | 519 x 500 x 515 mmĀ (20.4 x 19.7 x 20.3 in) |
| Weight:Ā | 27.5kg |
Product Information
Product Information
Shipping & Returns
Shipping & Returns




KEF Kube 15 MIE Subwoofer
KEF Kube 15 MIE Subwoofer
The KEF Kube 15 MIE, the largest model in the Kube subwoofer 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 EngineĀ®, the Kube 15 MIE is optimised to deliver exceptional depth and dynamics.
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.

Music Integrity EngineĀ®(MIE)
KEFās 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.Ā 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 and is suitable for rooms sized 15 ā 70m².
Specifications
| 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 ā 140Hz, LFE |
| Input: |
RCA phono sockets
Speaker level inputs Expansion port for KW1 |
| Power requirements: | 100 - 240V, 50/60 Hz |
| Power consumption: | 300VA |
| Dimension (H x W x D) with rear panel and feet: | 519 x 500 x 515 mmĀ (20.4 x 19.7 x 20.3 in) |
| Weight:Ā | 27.5kg |
Original: $1,129.42
-70%$1,129.42
$338.83Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The KEF Kube 15 MIE, the largest model in the Kube subwoofer 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 EngineĀ®, the Kube 15 MIE is optimised to deliver exceptional depth and dynamics.
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.

Music Integrity EngineĀ®(MIE)
KEFās 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.Ā 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 and is suitable for rooms sized 15 ā 70m².
Specifications
| 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 ā 140Hz, LFE |
| Input: |
RCA phono sockets
Speaker level inputs Expansion port for KW1 |
| Power requirements: | 100 - 240V, 50/60 Hz |
| Power consumption: | 300VA |
| Dimension (H x W x D) with rear panel and feet: | 519 x 500 x 515 mmĀ (20.4 x 19.7 x 20.3 in) |
| Weight:Ā | 27.5kg |
























