KEF Ci250RRM-THX High Output Three-Way In-Ceiling Round Speaker Instruction Manual
- June 3, 2024
- KEF
Table of Contents
KEF Ci250RRM-THX High Output Three-Way In-Ceiling Round Speaker
Introduction
Thank you for purchasing this KEF Ci series custom installation loudspeaker. These products have been designed for dry-lined, stud partition walls and ceilings and for suspended ceilings and will deliver many years of superb sound quality.
Warning
Installation should be performed by an installer who is skilled in the proper use of hand and power tools, has knowledge of local building and fire codes, and who is familiar with the environment behind the wall or ceiling where the speaker is being installed. No attempt should be made to install these loudspeakers unless you are sure you will not be cutting through electric cables, water or gas pipes, or supporting joists. Ensure the loading on the wall or ceiling will support the weight of these assemblies.
Installation
Decoration
Specifications
| Model | Ci250RRM- THX |
|---|---|
| Series | Ci-R Series |
| Nominal impedance | 8Ohm |
| Sensitivity (2.83V/1m) | 89dB |
| Frequency response (±6dB) open-backed | 28Hz-20kHz |
| Crossover frequency | 530Hz, 2.6kHz |
| Drive units HF | 19mm (0.75in.) vented aluminium |
dome with Metamaterial Absorption Technology
MF| 100mm (4in.) aluminium cone Uni-Q
LF| 250mm (10in.)
Recommended amplifier power| 50-250W
Product external dimensions Diameter| Ø346mm (13.62in.)
Depth| 175mm (6.89in.)
Cut-out dimensions Diameter| Ø300mm (11.81in.)
Net Weight| 6kg (13.2lbs)
Mounting depth from surface| 168mm (6.62in.)
Ideal Rear Volume (L)| 150L
Minimum Rear Volume (L)| 80L
Optional rough in frame| N/A
Optional rear enclosure| N/A
THX-Certified| *THX Certified Ultra
KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE. THX and the THX Logo are the property of THX Ltd., registered in the U.S. and other countries.
GP Acoustics (UK) Limited
Eccleston Road
Tovil, Maidstone
Kent, ME15 6QP
UK