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Architectural Speakers


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Combining durability, reliability and UL certification

KEF’s undisputed audio pedigree and consistent, high quality performance, the Ci Commercial Series is an outstanding in-ceiling speaker line-up for project work of all types.


The Ci Commercial Series Ci115QCT is best suited where high quality music and speech reinforcement applications require 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 Arena

The Details


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Integral fire-rated metal rear enclosure
UL2043-approved for use in air handling spaces
UL1480-5-approved for use in fire protection signalling systems
Front-mounted switch for selecting 8 ohm or 70/100 volt operation
Includes the hardware for mounting above a suspended ceiling or in a hard ceiling


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Nominal Impedance
8 Ohms
86dB (2.83V/ 1m)
Frequency Response
70 - 20kHz (+/-6dB) With back can/rear enclosure
Drive Units
LF: 115mm / HF: 19mm
Recommended Amplifier Power
15 - 80W
Uni-Q Array, UL2043 & UL1480-5 approved, 70V: 4W, 8W, 15W, 30W / 100V: 8W, 15W, 30W
Product External Dimensions
Diameter / Depth : 220mm (8.66in.) / 160mm (6.30in.)
Cut-Out Dimensions
Diameter : 196mm (7.71in.)
Mounting Thickness
Ceiling Thickness (Maximum): 33mm (1.3 in.)
Ceiling Thickness (Minimum): 4mm (0.16 in.)
Mounting Depth From Surface
With back can : 157mm (6.18in.)
Net Weight
2.7 kg (5.94 lbs)
Unit Measurement
KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE.

Please visit our Ci Software Download page for more details.