KEF's First Architectural Speaker with MAT ™
Featuring innovative technologies including 12 th Generation 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.
Pushing technological boundaries
KEF always pushes the technological boundaries in its mission to create the best possible sound; Ci250RRM-THX is the physical manifestation of that drive.
| 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 Technology 1 |
| Recommended Amplifier Power |
50 - 250W |
| Recommended High-pass Filter (Hz) |
30 - 60Hz |
| Product External Dimension |
Diameter (dia): 346mm (13.62in.) Depth: 175mm (6.89in.) |
| Cut-out Dimensions |
Diameter (dia): 300mm (11.81in.) |
| Net Weight |
6kg (13.2lbs) |
| Mounting Depth from Surface |
168mm (6.62in.) |
| Optional Rough In Frame |
- |
| Ideal Rear Volume |
150L |
| Minimum Rear Volume |
80L |
| Certification |
THX ® Certified Ultra |
| Safety and Regulatory Compliance |
IP64 |
| Ceiling thickness (Maximum) |
30mm (1.18in.) |
| Ceiling thickness (Minimum) |
6mm (0.24in.) |
| Remarks |
KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE. THX, the THX logo, and Ultra are trademarks of THX Ltd. THX and the THX logo are registered in the U.S. and other jurisdictions. All rights reserved. |
Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.
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