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Kef Ci4100QL-THX In Wall Speaker

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Quick Overview : Kef Ci4100QL-THX In Wall Speaker

Kef Ci4100QL-THX In Wall Speaker

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Featuring KEF’s sophisticated ’sit anywhere’ Uni-Q driver array, which places the tweeter in the acoustic centre of the bass/midrange cone, this allows both the tweeter and woofer to act as a single point source that disperses the sound widely and evenly throughout the room. Together with the discreet Ultra Thin Bezel (UTB) design, offering the slimmest possible visible rim around the speaker, the Ci Q Series range gives you tremendous freedom to position the speakers where you please.
Ci4100QL-THX is an in-wall speaker certified to THX SELECT2 standard. A deep understanding of the filmmaking process and surround sound is at the very heart of every THX certified 2.1, 5.1 and 7.1 speaker system. Engineered with design characteristics of professional studio speakers, THX recreates the tonal balance of the filmmaker's final mix in your living room. The results? Action sequences are impactful, and dialogue-driven moments are natural and engaging.

THX certified in-wall speakers deliver the appropriate frequency response and high output and imaging quality of a traditional box speaker. This provides the best of both worlds - THX surround sound performance from components that blend harmoniously with any room decor.

Kef Ci4100QL-THX In Wall Speaker

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Kef Ci4100QL-THX In Wall Speaker


• UTB™ Ultra Thin Bezel
• Asymmetrical tweeter island for wide off-axis response
• 19mm Uni-Q tweeter
• 76mm mounting depth allows placement in most walls

• Gold plated spring loaded binding posts

For music or movies, your installation needs to deliver the flawlessly accurate three-dimensional sound you’d expect from the best conventional speakers – startlingly clear and breathtakingly realistic. And that’s exactly what our Ci range does.

KEF’s passion for acoustic excellence shines through in every model. By combining radically innovative engineering with sophisticated design technologies, the Ci range achieves what used to be thought impossible: compact custom installation speakers that sound as compelling as an audiophile quality hi-fi system, no matter where you sit.

With impeccable cosmetics, there’s a KEF Ci model for every application, from tiny ceiling speakers the size of downlights to motorised super-premium home theatre speakers that glide into place at the touch of a button. All are ruggedised for harsh environments such as bathrooms or boats.

All KEF speakers are sonically-matched, so any combination you specify for different listening areas will have the same tonal colour for a perfectly consistent soundstage.

Fast, easy installation has always been valued by Ci Series installers. With only a few simple steps and KEF’s unique design features, Ci speakers can be fitted quickly, with no special skills. Once the hole is cut and the cable run, the area is soon flooded with great high definition sound.

Technical Specifications:
Ci 400QL-THX Speaker : (x1)

Nominal Impedance 4 Ohm
Sensitivity (2.83V/1m)


Frequency Response +/-6dB

55Hz -28KHz
Crossover frequency 2.2 KHz
Drive Units (LF)
3x 100mm

(MF) 100mm
(HF) 19mm Uni-Q
Amplifier Power
10W - 150W

Dimensions 490 x 128 x 81 mm
Weight 3 kg
Cut-out dimensions H x W : 476 x 114mm
Mounting depth from surface 76mm
Optional rough in frame - RIF400L

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