KEF Kube 15 MIE 15-Inch 300W Powered Subwoofer - Black

Experience Ultimate Bass Performance

The KEF Kube 15 MIE stands as the flagship model within the acclaimed Kube subwoofer range, meticulously engineered to provide the deepest, most immersive bass experience for your high-end music, cinematic movies, and competitive gaming setups. As the largest and most powerful subwoofer in the series, this unit is specifically designed to fill large listening rooms and dedicated home theater environments with ground-shaking low-frequency energy that you can truly feel in your chest.

By expertly combining a massive 15-inch front-firing long-throw driver with a highly efficient 300W RMS Class D amplifier, the Kube 15 MIE delivers unparalleled depth, sonic precision, and explosive dynamics. At the heart of this powerhouse is KEF’s proprietary Music Integrity Engine (MIE), a sophisticated digital signal processing suite that ensures every note is rendered with absolute clarity and tight control for a complete, full-body sonic journey that breathes new life into your entire media collection.

Unmatched Key Features

• 15-Inch Front-Firing Driver: Equipped with a high-excursion active driver designed to move vast amounts of air for visceral, deep bass response that resonates through any space.
• Music Integrity Engine (MIE): Proprietary DSP algorithms continuously monitor and optimize output, ensuring detailed, accurate sound reproduction across all volume levels.
• iBX Intelligent Bass Extension: KEF’s signature technology that unlocks the full potential of the custom driver to provide deeper, tighter, and more precise bass at any listening volume.
• Powerful 300W Class D Amplification: The integrated high-efficiency amplifier provides robust power delivery, ensuring the internal components run cool even during the most demanding, extended playback sessions.
• Versatile Placement EQ: Features 3 distinct, user-friendly room position presets—Free-standing, Wall/In-cabinet, and Corner—allowing you to calibrate performance based on your specific room acoustics.
• SmartConnect Intelligence: Automatically detects incoming mono or stereo signals, simplifying your setup process regardless of your unique receiver or amplifier configuration.
• Sealed Cabinet Design: The sophisticated acoustic suspension enclosure offers superior placement flexibility, making it an ideal choice for discrete installations inside custom media cabinets or living room consoles.

Technical Specifications

• Design Type: Sealed Cabinet Powered Subwoofer
• Driver Configuration: 1 x 380mm (15 inch) high-performance long-throw driver
• Frequency Response: 20Hz - 140Hz (±3dB) for deep subwoofer extension
• Maximum Sound Output: 116dB, providing impressive impact for large home theaters
• Amplifier Technology: Class-D high-efficiency amplification
• Amplifier Power: 300W RMS constant power output
• Connectivity Options: RCA phono sockets and speaker level inputs for system flexibility
• Wireless Expansion: Includes an expansion port for the KEF KW1 Wireless Subwoofer Adapter Kit
• Physical Dimensions: 20.4 x 19.7 x 20.3 inches (519 x 500 x 515 mm)
• Unit Weight: 60.6 lbs (27.5 kg) for rock-solid stability during high-volume playback

What Is Included In The Box

• KEF Kube 15 MIE Powered Subwoofer Unit
• Dedicated Power Cord for reliable connection
• Comprehensive Quick Start Guide for easy installation