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Black KEF KUBE 15 MIE 15" Subwoofer on a white background
Black KEF KUBE 15 MIE 15" Subwoofer with control panel on a white background
Black KEF KUBE 15 MIE 15" Subwoofer and tall floor-standing speaker in a room setting.
Home theater system with black KEF KUBE 15 MIE 15" Subwoofer and a TV in a living room setting.
Black KEF KUBE 15 MIE 15" Subwoofer with dimensions labeled on a white background
Set of four black KEF KUBE MIE Subwoofers with varying sizes on a gray background
Black KEF KUBE 15 MIE 15
Black KEF KUBE 15 MIE 15
Black KEF KUBE 15 MIE 15
Home theater system with black KEF KUBE 15 MIE 15
Black KEF KUBE 15 MIE 15
Set of four black KEF KUBE MIE Subwoofers with varying sizes on a gray background

KEF

KEF KUBE 15 MIE 15" Subwoofer

SKU: KUBE15 MIE

$2,199.00
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  • Description
  • About KEF
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The KEF Kube 15 MIE is the most powerful subwoofer in KEF’s Kube series, designed to deliver deep, room-filling bass with precision and control. Featuring a 15-inch front-firing driver powered by a 300-watt Class D amplifier, the Kube 15 MIE brings weight and impact to music, movies, and home theatre systems — especially in larger spaces.

At its core is KEF’s Music Integrity Engine® (MIE), a suite of advanced digital signal processing that carefully synchronises the amplifier and driver for cleaner, more accurate low-frequency performance. This intelligent control allows the Kube 15 MIE to deliver both subtle bass detail and powerful low-end effects without sounding bloated or overbearing.

The sealed cabinet design helps maintain tight, articulate bass that integrates naturally with a wide range of loudspeakers. Whether supporting compact standmounts or full-range floorstanders, the Kube 15 MIE enhances the system’s foundation while keeping the midrange clear and uncoloured.

Flexible setup options make integration straightforward. Adjustable crossover, phase control, and multiple room EQ presets allow the subwoofer to be tuned to suit placement and room acoustics, ensuring consistent performance in real-world listening environments. For added convenience, the Kube 15 MIE can also be paired wirelessly with compatible KEF systems using an optional wireless adapter.

Key Features

  • 15-inch front-firing driver for deep, authoritative bass

  • 300-watt Class D amplification for effortless low-frequency output

  • Music Integrity Engine® with Intelligent Bass Extension for accuracy and control

  • Sealed cabinet design for tight, musical bass response

  • Line-level, LFE, and speaker-level inputs for broad system compatibility

  • Multiple room EQ presets for easy tuning

  • Optional wireless connectivity with compatible KEF systems

Designed for listeners who want impact without compromise, the KEF Kube 15 MIE adds depth, scale, and realism to your system — creating a bass foundation you can both hear and feel, while remaining controlled and musical.

KEF is a British loudspeaker manufacturer that produces a range of high-quality audio products, including home theater speakers, stereo speakers, and headphones. The company was founded in 1961 and is headquartered in Maidstone, Kent, England. KEF is known for its innovative loudspeaker designs, which incorporate advanced materials and technologies to deliver high-quality sound. For example, KEF's Uni-Q driver technology places the tweeter in the center of the midrange cone, resulting in a more coherent and accurate soundstage. The company also uses materials like aluminum, magnesium, and carbon fiber to create rigid and lightweight speaker cones that minimize distortion. KEF offers a range of products to suit different needs and budgets, from its affordable Q Series speakers to its high-end Reference Series. The company's products are also designed to be visually striking, with sleek and modern designs that complement contemporary home decor.

All orders are processed within 48 hours from date of order.

We offer Free Ground Shipping on all orders regardless of size.  

  • If you would like to receive your order quicker you can request Express shipping during Check-Out in the Comments section.  Additional charges will apply.
  • In-stock items are shipped from our Vancouver warehouse and will reach major Canadian cities in 5-7 business days.
  • Items not in stock will either ship from one of our manufacturer partners' warehouses or in rare cases first must be sent to Vancouver and then to you.  

What does MIE mean in the KEF Kube 15 MIE?

MIE stands for Music Integrity Engine®, KEF’s proprietary digital signal processing technology designed to optimize bass performance for greater depth, accuracy, and clarity.

What driver does the Kube 15 MIE use?

The Kube 15 MIE features a 15-inch front-firing driver designed to deliver powerful low-frequency performance for both music and home theatre systems.

Does the Kube 15 MIE include room placement settings?

Yes. The subwoofer includes room placement EQ settings that help optimize bass performance depending on where the subwoofer is placed in the room, such as in a corner, against a wall, or in open space.

Home theater system with KEF KUBE 15 MIE 15" Subwoofer and a TV in a living room setting.

15-inch front-firing active subwoofer

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.

Black KEF KUBE 15 MIE 15" Subwoofer and tall floor-standing speaker in a room setting.

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.

Black KEF KUBE 15 MIE 15" Subwoofer on a white background

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 theatres.

Why Shop at Hi-Fi Centre

Whether you're an audiophile or just getting started, we'll help you find the perfect setup with expert advice and hands-on demos. Here's why music lovers and home theatre enthusiasts choose us:

  • Curated Selection of Premium Brands - The world's best high-fidelity audio and home theatre gear, all in one place.
  • Professional Guidance & Custom Demos - Experience premium sound firsthand with help from our expert staff.
  • Exceptional Customer Service - We're here to help before, during, and after your purchase.
  • An Experience Like No Other - Step into our showroom and hear the difference for yourself.

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