KEF Ci100QS In-Ceiling Speaker Soundlight Series


The KEF Ci100QS - quality that is quite literally out of sight! Purpose-built for flush mounting into walls and ceilings, the Ci100QS delivers KEF's renowned audio quality as unobtrusively as possible. Part of our Soundlight Series of unobtrusive architectural speakers, the Ci100QS is diminutive in size but not in performance!


The popular Soundlight Series is yet another major innovation form KEF. When installed, Soundlight speakers are so tiny that they blend in with halogen light fixtures yet will amaze you with their astonishing performance, thanks to KEF’s patented Uni-Q’s exceptionally wide dispersion.

Purpose built for flush mounting into walls and ceilings these are the latest addition to the KEF Uni-Q Custom Installation series. Providing a compact solution to the problem of Hi-Fi quality sound from an in-wall/ceiling speaker, the Ci100QS consists of a polypropylene cone LF driver with the HF unit mounted at the acoustic centre of the LF unit. The bezel and grill can be painted to match the interior décor.
The Ci Series Ci100QS is best suited for high quality music and speech reinforcement applications requiring hi-fi performance
such as:

• Multi Room systems
• Home Theatre systems
• Lounges, Bars, Boutiques
• Boardrooms & Offices
• Airports, Convention Centres, Hotels
• Live Theatre/Concert Hall fill-in
• Houses of Worship
• Sports Arenas

The Ci 100QS features a 4in. Uni-Q driver array with a 19mm aluminium dome tweeter.

Model Ci100QS
Nominal Impedance
Sensitivity (2.83V/ 1m) 88dB
Frequency response (±6dB)
80Hz - 27kHz
Crossover frequency 3kHz
Drive units

100mm (4in.)
19mm (0.75in.)
Recommended Amplifier Power 10 - 50 W
Product external dimensions
(H x W x D)
127 x 127 x 76 mm
(5.0 x 5.0 x 2.99 in.)
Cut-out dimensions (H x W)
(With back can)
(Without back can)

112 x 112 mm
(4.41 x 4.41 in.)
Net Weight 0.67kg (1.48lbs.)
Mounting depth from surface
(Without back can)
72mm (2.83in.)
Optional rough in frame RIF100S
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