Ci5120QLM-THX
Architectural Speakers
A versatile THX Certified Ultra In-Wall Speaker with MAT™
MF: 100 mm (4 in.) Uni-Q
HF: 19 mm (0.75 in.) vented aluminium dome with Metamaterial Absorption Technology1
Master box 27KG (59.5 lbs.)

What is in the box
- Ci5120QLM-THX x 1
- Metal grille x 1
- Cutout template x 1
- Warranty booklet
- Manual

Listen and believe
Frequently Asked Questions
Installing in-wall speakers can be a rewarding project if you're handy. Here are the top-line steps to guide you through the process:
- Choose the location: Select where you want to install your speakers. You can either use an existing stud wall or framing, or build out from the existing wall to create the required space for the speakers.
- Use the cutout template: Most in-wall speakers come with a cutout template. Use this to mark the area on the wall where you'll cut.
- Cut the opening: Carefully cut along the marked lines to create the opening for the speaker.
- Run the wiring: Run speaker wire from your audio source to the cutout location.
- Install the speaker: Connect the speaker to the wiring and secure it in place according to the manufacturer's instructions.
- Finish Up: Once installed, you can paint or finish the wall around the speaker for a seamless look.
If you’re unsure about any part of the installation, it's best to consult a professional. Hiring a trusted expert can ensure your speakers are installed correctly and maximise your sound experience.
For a list of reliable professionals, check out our Store Locator to find partners in your area.
In-wall speakers offer several advantages and disadvantages compared to freestanding box speakers. Here’s a brief comparison:
Pros:
- Space-Saving: In-wall speakers are discreet and free up floor space, contributing to a clean and modern look.
- Aesthetic Appeal: They blend seamlessly with your décor, enhancing the overall design of your space.
- Reduced Clutter: No need for extra speaker stands or furniture, leading to a more streamlined environment.
Cons:
- Installation Complexity: Requires cutting into walls and running wiring, which can be challenging for some.
- Limited Placement Flexibility: Once installed, they cannot be easily moved to optimize sound.
Both KEF in-wall and freestanding box speakers feature our innovative Uni-Q technology, which helps eliminate the sweet spot, ensuring you enjoy pure, immersive sound no matter where you are in the room. So, regardless of which option you choose, you can be assured of the most accurate audio experience.
When it comes to building a home theatre, KEF in-wall speakers stand out due to innovative technologies like Uni-Q, which enhances sound dispersion for a more immersive experience, and Metamaterial Absorption Technology (MAT), which minimises unwanted sound from the back of the driver, ensuring clearer audio.
KEF’s collection of in-wall architectural speakers from the Extreme Home Theatre range combines exceptional performance with a design that seamlessly integrates into your space. Additionally, many of our speakers are THX certified, ensuring high-quality sound reproduction and powerful bass for a truly cinematic experience, no matter the size of your space.
Whether you seek advanced technology or aesthetic appeal, KEF has the perfect in-wall speaker for your home theatre installation.






