KEF CI100QS 4" Uni-Q Square In-Ceiling Speaker (Each)


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!


  • Nominal Impedance: 4Ω
  • Sensitivity (2.83V/ 1m): 88dB
  • Frequency response (±6dB) open-backed: 80Hz - 27kHz
  • Crossover Frequency: 3kHz
  • Drive Units:
    • LH: 100mm (4in.)
    • HF: 19mm (0.75in.)
  • Recommended Amplifier: 10-50W
  • 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): 112 x 112 mm
    • (Without back can): (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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