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KEF Ci250RRM-THX Extreme In-Ceiling with a cover.
KEF Ci250RRM-THX Extreme In-Ceiling shown half with a cover and half uncovered.
Modern home theater with a large screen displaying an outer space scene, with KEF Ci250RRM-THX Extreme In-Ceiling speakers installed, surrounded by comfortable seating.
A side view of a KEF Ci250RRM-THX Extreme In-Ceiling.
A side view of a KEF Ci250RRM-THX Extreme In-Ceiling with a cover.
A side view of a KEF Ci250RRM-THX Extreme In-Ceiling.
A side view of a KEF Ci250RRM-THX Extreme In-Ceiling with a cover.
A back side of a KEF Ci250RRM-THX Extreme In-Ceiling.
KEF Ci250RRM-THX Extreme In-Ceiling with a cover.
KEF Ci250RRM-THX Extreme In-Ceiling shown half with a cover and half uncovered.
Modern home theater with a large screen displaying an outer space scene, with KEF Ci250RRM-THX Extreme In-Ceiling speakers installed, surrounded by comfortable seating.
A side view of a KEF Ci250RRM-THX Extreme In-Ceiling.
A side view of a KEF Ci250RRM-THX Extreme In-Ceiling with a cover.
A side view of a KEF Ci250RRM-THX Extreme In-Ceiling.
A side view of a KEF Ci250RRM-THX Extreme In-Ceiling with a cover.
A back side of a KEF Ci250RRM-THX Extreme In-Ceiling.

Kef

KEF Ci250RRM-THX Extreme In-Ceiling

SKU: Ci250RRM-THX

$3,000.00each
Free Shipping in Canada

This item is priced as "each," please select quantity “2” for a pair. Speakers and Speaker Stands cannot be sold individually.
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Immersive sound for cinema-grade home audio:

The KEF Ci250RRM-THX brings immersive, full-range audio directly into your living space without taking up valuable floor space. As a key highlight in the KEF Architectural range, these versatile In-Wall/In-Ceiling Speakers utilize a coaxial point-source arrangement where the high and mid-frequency drivers align perfectly. This configuration spreads audio evenly across the entire room, ensuring every listener experiences the exact same balanced soundstage regardless of where they sit.

Deep bass and pristine detail in one sleek unit:

Behind the flush grille, a substantial 250mm low-frequency driver delivers deep, room-filling bass down to 28Hz, producing powerful low-end impact for movie soundtracks and high-resolution music. Coupled with advanced absorption technology that neutralizes unwanted sound reflections inside the housing, distortion is reduced to unnoticeable levels. Whether configured so each channel operates independently or arranged in a multi-channel surround layout, this high-output In-Ceiling speaker delivers up to 111dB SPL with remarkable clarity, performing significantly beyond standard instock custom installation components.

  • 12th Generation Uni-Q Driver: Spreads mid and high frequencies evenly throughout the room for a wider sweet spot.
  • Metamaterial Absorption Technology: Traps 99% of rearward sound waves to eliminate distortion and maintain high-frequency purity.
  • 250mm Low-Frequency Driver: Produces deep, controlled bass down to 28Hz without requiring an external subwoofer.
  • Cavity Radiation Control: Manages internal air movement to preserve precise mid-range transparency and vocal clarity.
  • Low Diffraction LF Aperture: Smooths acoustic airflow across the speaker baffle for distortion-free listening at higher volumes.
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 THX Certified Ultra mean for the KEF Ci250RRM-THX?

THX Certified Ultra means the Ci250RRM-THX meets THX’s strict performance standards for large home theatre rooms. It is engineered to deliver high output, low distortion, and cinematic dynamics at reference listening levels

What driver configuration does the Ci250RRM-THX use?

The Ci250RRM-THX features KEF’s Uni-Q® driver array, which places the tweeter at the centre of the midrange cone. This design promotes even sound dispersion and consistent tonal balance throughout the listening area.

Where is the Ci250RRM-THX best used in a home theatre system?

The Ci250RRM-THX is designed for high-performance in-ceiling applications and can be used in THX-certified systems as part of a premium home cinema setup, delivering powerful and accurate sound while maintaining a clean, flush-mounted appearance.

Modern home theater with a large screen displaying an outer space scene, with KEF Ci250RRM-THX Extreme In-Ceiling speakers installed, surrounded by comfortable seating.

KEF’s First Architectural Speaker with MAT™

Featuring innovative technologies including 12th Generation Uni-Q® driver array with Metamaterial Absorption Technology (MAT), patent-pending Cavity Radiation Control and Low Diffraction LF Aperture, Ci250RRM-THX is a truly revolutionary coaxial three-way architectural speaker that delivers immersive, high-fidelity soundstage with unmatched sonic excellence for large home theatres and living rooms.

Low Diffraction LF Aperture

Ci250RRM-THX features Low Diffraction LF Aperture, a carefully profiled, smoothed housing design with an outer acoustically absorptive foam ring that reduces resonance and diffraction. As a result, it delivers exceptional MF/HF performance while preserving a tremendous bass output.

Cavity Radiation Control (CRC)

The latest patent-pending technology developed by the KEF Engineering team in the UK; Cavity Radiation Control (CRC) is a unique open-back midrange with acoustically absorptive foam design that eliminates midrange issues including frequency response dips of up to 30dB in magnitude, found in typical coaxially arranged three-way designs. With CRC, Ci250RRM-THX delivers the highest midrange acoustic realism among three-way coaxial loudspeakers to date.

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:

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  • An Experience Like No Other - Step into our showroom and hear the difference for yourself.

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