The KEF Ci200RR-THX is an 8″ (200mm) round in-ceiling speaker from the KEF Ci R Series, THX Certified Ultra for home cinema use. Its Uni-Q driver places a large 38mm aluminium dome tweeter at the acoustic centre of the woofer, giving 120° coverage and 106dB max SPL, so it can be used as an in-ceiling LCR or surround in larger rooms.
THX Certified Ultra in-ceiling speaker
Uni-Q driver array with the tweeter in the acoustic centre of the woofer
38mm (1.5″) high-power aluminium dome tweeter
Tangerine waveguide for 120° coverage
Weather resistant with UV-protected plated and powder-coated finish; IP64 certified
Ultra-Thin Bezel (UTB) and paintable magnetic grille
Universal 200mm cut-out shared with other KEF 200mm round in-ceiling models
Gold-plated spring-loaded binding posts and covered crossover
This is a 4Ω speaker – check your amplifier is rated for 4Ω loads.
| Model | Ci200RR-THX |
| Series | R Series |
| Nominal impedance | 4Ω |
| Sensitivity (2.83V/1m) | 90dB |
| Frequency response (±6dB, open-backed) | 33Hz – 28kHz |
| Nominal coverage | 120° |
| Max SPL | 106dB |
| Crossover frequency | 2.2kHz |
| Drive units | LF: 200mm (8″) Uni-Q; HF: 38mm (1.5″) |
| Recommended amplifier power | 10 – 190W |
| Recommended high-pass filter | 35Hz – 80Hz (80Hz for THX spec) |
| External dimensions | Ø 290mm x 132.6mm deep |
| Cut-out diameter | 238mm |
| Mounting depth from surface | 126.5mm |
| Net weight | 3.6kg |
| Optional rough-in frame | RIF200R |
| Rear volume | 20L ideal / 10L minimum |
| THX certification | THX Certified Ultra |
| Certification | IP64 |





