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 optimized to deliver exceptional depth and dynamics.
Music Integrity Engine® (MIE) KEF’s proprietary DSP algorithm
When it comes to speakers, accuracy is everything. Thanks to KEF’s proprietary Music Integrity Engine, Kube delivers more depth, greater output and increased dynamics than ever. KEF’s Music Integrity Engine is a proprietary suite of in-house written DSP (Digital Signal Processing) algorithms, serving as the mastermind behind the detailed and accurate sound that characterizes our wireless speakers and subwoofers.
Tailored for each model, this ensures that every component works in perfect harmony to an even higher level than would otherwise be possible. Having learned from the development of LS60 Wireless and KC62, for Kube we’ve been able to further improve accuracy, especially at high output levels.
iBX Intelligent Bass Extension
Part of the Music Integrity Engine, iBX Intelligent Bass Extension creates an extended depth that unlocks the full potential of the custom driver. By analyzing your input signal and making multitudes of tiny adjustments every second, iBX allows the subwoofer to play louder and remain dynamic at any listening level. In step with the advancements developed by MIE, the new version of iBX lowers distortion still further. The end result is simply remarkable accuracy.
Feel the force
Kube boasts a front-firing long throw driver, producing higher output at lower frequencies. This approach creates a sensation of direct force into the room, creating a tactile, pressured, and powerful bass experience. With high SPL and low-frequency extension, Kube faithfully reproduces the lowest octaves in both movies and music, ensuring an immersive, impactful sonic environment.
300W Class D RMS amplifier
Optimally designed for the driver and the available acoustic volume, the Class D RMS amplifier in the Kube runs efficiently and cool, providing ample power for the subwoofer. It reproduces deep bass and rumble with precision and dynamic, adding intensity and realism to your audio experience.
Versatile connectivity
With a comprehensive range of connection options, Kube adapts easily to a wide variety of audio systems. Featuring line level/speaker level inputs, it can be connected to any amplifier. KEF SmartConnect automatically determines whether a mono or stereo input is being used, optimizing the gain for optimum performance. Additionally, Kube is compatible with the KW1 wireless subwoofer adapter for simple wireless integration.
Easy integration with presets
As KEF Kube subwoofers are front-firing, they may be placed near walls, in corners, or even built into walls and cabinets. Thanks to Music Integrity Engine, Kube features a placement-dependent EQ section that can be easily adjusted to maximize in-room performance. With three room placement setting options, Kube easily fits into any environment, ensuring consistent performance wherever it is placed.
Power tailored to you
Kube benefits from a flexible choice of power-on modes tailored to your system's requirements – music sense for standby wake-up upon audio signal detection, 'always on' for instant readiness, and 12V trigger for a single button switch on in an integrated home system.
Seamless elegance and thoughtful design
As well as working with the room acoustically, Kube's sealed cabinet is designed for easy positioning. Coupled with the minimal, contemporary design, Kube subwoofers blend seamlessly with any interior. The Kube is available in four sizes: 15", 12", 10", and 8" driver, offering a solution to suit any room and application, such as music, home theatre, and gaming.
Features
The Kube 15 MIE is engineered to deliver immersive, room-filling bass with precision and control. At its core is KEF’s proprietary Music Integrity Engine® (MIE) a sophisticated digital signal processing (DSP) platform that ensures all components of the subwoofer work in perfect harmony, optimizing overall performance.
To ensure seamless integration with any room layout, the Kube 15 MIE includes three EQ placement presets Free Standing, Wall/In-Cabinet, and Corner allowing you to tailor bass response based on where the subwoofer is located.
The built-in 300W RMS Class D amplifier provides robust and efficient power, delivering impactful low frequencies with ease. KEF SmartConnect technology intelligently detects mono or stereo inputs, automatically adjusting gain for optimal output. This means effortless setup, whether you're connecting to a stereo system or home theater.
With its versatile control interface, the Kube 15 MIE can be easily matched with a wide range of loudspeakers and home environments. The sealed cabinet design enhances acoustic accuracy and also allows for placement inside cabinetry without sacrificing performance.
Technical Specifications
Feature
Spec
Design
Powered Subwoofer (Sealed)
Drive Units
1 x 380mm (15in.)
Frequency Response
20Hz – 140Hz (±3dB)
Maximum Output
116dB
Amplifier Type
Class-D
Amplifier Power
300W RMS
Variable Low Pass Filter
40Hz – 140Hz, LFE
Input
RCA phono socketsSpeaker level inputs
Expansion Port
Compatible with KW1
Power Requirements
100 – 240V, 50/60 Hz
Power Consumption
300VA
Dimensions (H x W x D)
519 x 500 x 515 mm (20.4 x 19.7 x 20.3 in)
Weight
27.5 kg
Quote Request Items
Request Exclusive Deal
Please verify your details and enter your city to submit your quote request.
✓
Request Sent
Thank you for your interest. We will get back to you with exclusive member pricing soon.
Many sellers offer products without service, but we’ve got you covered. Contact us to book your warranty, drop it in-store, or ship it to us for a refund or exchange for up to 10 years.
