KEF Ci100QS:
very model in the KEF Ci range is backed by our 50 years’ experience in researching and designing premium products. Even when creating speakers that can be hidden, we aim for outstanding sound.
The Ci Series combines advanced audio technologies, brilliantly innovative engineering and superlative design. Each model is engineered to attain the ultimate performance in its specific setting, and integrates perfectly with other KEF speakers.
Whether you seek powerful wall-mounted speakers, ceiling-mounted speakers that blend with light fittings, or speakers that only appear when called for, you can find models to suit your needs in the KEF Ci Series.
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Key features of Ultra Thin Bezel (UTB) models:
Ultra Thin Bezel (UTB)
KEF’s search for the definitive discreet Ci speaker has culminated in the new Ultra Thin Bezel designs, offering the slimmest possible visible rim around the speaker.
Uni-Q
KEF’s patented ’sit anywhere’ Uni-Q driver array places the tweeter in the acoustic centre of the bass/midrange cone (woofer). This allows both woofer and tweeter to act as a single, focused source of sound that is dispersed widely and evenly throughout the room. The practical benefit is that great sound can be experienced from anywhere in the listening environment removing the ‘sweet spot’ effect.
Fast and Easy to Install
KEF’s Ci loudspeaker design makes them so quick and easy to install that once the wire is run and the hole is cut in your wall or ceiling you can be listening to music in less than two minutes.
Forward Woofer Mounting
Forward woofer mounting is another KEF technology that eliminates diffraction and ensures we create speakers that perform brilliantly regardless of placement.
Computer Optimised Trim Ring
The new, computer optimised trim ring offers stunning midrange clarity and a more open and natural sound across a wider area.
Special Grille Treatments
Ci UTB speakers feature a powder-coated grille treated with a proprietary process, which combined with the moisture-resistant fixings and other rugged materials we use, makes the speaker corrosion resistant so it’s ideal for use in humid and salt spray conditions, such as bathrooms, near pools, beside the ocean, or even on your yacht.
Complete Magnetic Circuit
This feature was designed to hold the speaker grille firmly in place.
New Mounting Leg
The new mounting leg is easy to use and distributes force evenly, benefiting fast installation without damage to the wall or ceiling.
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| Model |
Ci100QS |
| Nominal impedance |
4O |
| Sensitivity (2.83V/1m) |
88dB |
Frequency response
(±6dB) open-backed |
80Hz – 27kHz |
| Crossover frequency |
3kHz |
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Drive units
LF
HF
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100mm (4in.)
19mm (0.75in.)
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Recommended amplifier power
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10 – 50 W
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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 |
| Optional rear enclosure |
RNC100S |
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KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE.
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