KEF Ci250RRM-THX Three-Way 10 Inch Meta In-Ceiling LCR Speaker (Each)

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  • $ 2,499.99

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KEF’s First Architectural Speaker with MAT™ 
Featuring innovative technologies including 12thGeneration Uni-Q® driver array with Metamaterial Absorption Technology (MAT), patent-pending Cavity Radiation Control and Low Diffraction LF Aperture, Ci250RRM-THX is a truly revolutionary coaxial three-way architectural speaker that delivers immersive, high-fidelity soundstage with unmatched sonic excellence for large home theatres and living rooms.
Powerful, high-fidelity sound
As part of the Extreme Home Theatre line-up within KEF Architectural Speakers, Ci250RRM-THX is engineered to deliver powerful, room-filling, high-fidelity sound for the most discerning music and movie lovers.

Featuring a 250mm (10 in.) LF driver, Ci250RRM-THX delivers deep, room-filling bass down to 28Hz. Together with the 100mm (4 in.) Uni-Q driver array with MAT, Ci250RRM-THX delivers powerful, high-fidelity sound with maximum SPL of 111dB.
  • Nominal Impedance: 8 Ohms
  • Sensitivity (2.83V/1m): 89dB
  • Frequency Response (±6dB) Open-backed: 28Hz - 20kHz
  • Frequency Range (-10dB): 20Hz - 45kHz
  • Nominal Coverage (Degrees): 120
  • Max SPL: 111dB
  • Crossover Frequencies: 540Hz, 2.6kHz
  • Drive Units: 
LF: 250mm (10in.)
MF: 100mm (4in.) Uni-Q
HF: 19mm (0.75in.) vented aluminium dome with Metamaterial Absorption Technology1
  • Recommended Amplifier Power: 50 - 250W
  • Recommended High-pass Filter (Hz): 30 - 60Hz
  • Product External Dimension:
Diameter Ø: 346mm (13.62in.):
Depth: 175mm (6.89in.)
  • Cut-out Dimensions: Diameter Ø: 300mm (11.81in.)
  • Net Weight: 6kg (13.2lbs)
  • Mounting Depth from Surface: 168mm (6.62in.)
  • Optional Rough In Frame: -
  • Certification: THX® Certified Ultra
  • Safety and Regulatory Compliance: IP64
  • Ceiling thickness (Maximum): 30mm (1.18in.)
  • Ceiling thickness (Minimum): 6mm  (0.24in.)

WARNING: California Residents - Proposition 65. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to



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