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Specifications
  • Speaker Type
    In-Wall
  • Key Specs
    • Speaker Type: In-Wall
  • General
    • Brand: KEF
    • Model Number: CI4100QL-THX IN-WALL THX SELEC
    • Product Name: Ci4100QL-THX Speaker
    • Color: White
  • Audio
    • Speaker Type: In-Wall
    • Impedance: 4 ohms (Describes the resistance of an electric signal throughout the system. Devices with low impedance require less power to deliver optimal signals but are more at risk for damage from overloading. Higher impedance requires more power but is more protected from overload damage.)
    • Minimum Frequency Response: 55 hertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The minimum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
    • Maximum Frequency Response: 28 kilohertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The maximum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
    • Sensitivity: 89 decibels
    • Number of Tweeters: 1
    • Tweeter Size: 0.75 inches
    • Number of Drivers: 5
    • Number of  Woofers: 3
    • Woofer Size: 4 inches
  • Connectivity
    • Wireless Multi-Room Audio: false (Technology that allows multiple speakers and/or soundbars to be connected wirelessly and play audio in separate rooms.)
    • Network Connector(s): No network connectors
  • Features
    • Indoor Or Outdoor Use: Indoor (Indicates the appropriate environment product was designed to be used in.)
  • Dimensions
    • Product Height: 19.3 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 5 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 3.2 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Product Weight: 6.6 pounds (The out of box weight of the item.)
  • Included
    • Cable(s) Included: None
  • Other
    • UPC: 637203211164

Ci4100QL-THX is an in-wall speaker. A deep understanding of the film making process and surround sound is at the very heart of this speaker system. Together with the discreet bezel design, offering a slim visible rim around the speaker, this series gives you tremendous freedom to position the speakers where you please. The results? Action sequences are powerful, and dialog-driven moments are natural and engaging.

Speaker Buying Guide

  • Multiroom compatible speaker: Plays music in multiple rooms at once.
  • 2-way speaker system: Sends the right frequencies to the right speakers for outstanding audio.
  • Rich, powerful sound: Includes a mid-range, a tweeter and 3 woofers.
  • Removable grille: Remains acoustically transparent while protecting the speaker's components.
  • Wall-mountable design: For flexible placement options.
Whats Included
  • KEF Ci4100QL-THX Speaker

Q: What is the sensitivity of this speaker?

A: This speaker has a sensitivity of 89 decibels.

Q: What is the impedance of this speaker?

A: This speaker has an impedance of 4 ohms.

Q: Is this KEF speaker compatible with multiroom audio?

A: Yes, this speaker is multiroom compatible.

Q: Can the grille on this speaker be removed?

A: Yes, the grille on this speaker is removable.

Q: How many woofers does this speaker have?

A: This speaker has 3 woofers.

Q: What type of speaker system does this KEF speaker have?

A: This KEF speaker has a 2-way speaker system.

Q: Are the grills paintable?

A: Yes, but... You can't just roll on latex wall paint. It is too thick. Go to your local paint store and ask them if they can make a spray can of matching paint.

KEF - Ci4100QL-THX Speaker - White

Model: CI4100QL-THX IN-WALL THX SELEC
SKU: 6204534
$699.99
Availability
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Pros for KEF - Ci4100QL-THX Speaker - White
Sound QualityThere were no pros for this productThere were no pros for this productSound Quality, Installation
Cons for KEF - Ci4100QL-THX Speaker - White
There were no cons for this productThere were no cons for this productThere were no cons for this productBass

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Reviews

Customers are saying

Customers find value in the Ci4100QL-THX Speaker for its exceptional sound quality, making it a great choice for any home theater experience.

This summary was generated by AI based on customer reviews.

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    Incredible sound and looks terrific

    These sound absolutely amazing. I had some smaller polk speakers prior to this and primarily got these for their appearance. I didn't think my non-audiofile ears would really recognize much performance improvement beyond less distortion at higher volumes. Wow was I wrong. I hooked these up to my Denon 4700 and even hearing the audacity test was different. Off-axis performance is excellent and there's a tightness/crispness to these that you pick up immediately. I put on some various tracks I'm familiar with and felt like I was hearing aspects of the songs for the first time. I lack the way to articulate it in more technical terms, but the sound is quite immersive. I've since added a KEF center channel and I not only get an immersive experience, I can clearly hear dialog in movies without having to turn on subtitles. I started with these in hopes to get a sense of their off-axis capabilities. I'm wholly confident in KEF's Q-line of speakers to perform well for rear and ceiling atmos surround speakers. Beyond the sound, installation was straightforward. I aligned the templates horizontally on the wall using a laser level and then each speaker vertically. There's a little bit of play in the cut-out, though, so keep the level out for when you actually tighten them down. I doubt it would have mattered, but after measuring I was sure to cut the drywall *inside* the traced line from the template and I still had some room on all sides. The hardware is very solid and the terminals were super easy to use (I used 12 AWG wire). The grills don't pressure fit in, but instead, use a magnet to stay in place against a rubber gasket - no rattles and easy to remove. They also provide a plastic cover for the inner speaker portion so you can safely paint the white trim of the speaker. You can also spray paint the grill. I didn't do this, but it looked like it'd work just fine as the holes in the grill aren't too small if you used a good sprayer.

    Posted by berden

  • Rated 5 out of 5 stars

    Speaker

    Amazing sound, great quality and price. Great customer service.

    Posted by Lori

  • Rated 5 out of 5 stars

    speaker

    fantastic audio clarity with superb tonal qualities

    Posted by ag25

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