Ci250RRb-THX vs Ci200RS-THX
The Ci200RS-THX's impedance is 4Ω against the Ci250RRb-THX's 8Ω, its sensitivity 90 dB against 109 dB, its woofer 8" against 10", and its low-frequency extension 33 Hz against 20 Hz.
AI-generated product photo — not official manufacturer imagery.
LoudspeakersSubwoofersIn-Wall/Ceiling Speakers
Estimated price (community-sourced)
$2,000
Around — community and catalog average, updates slowly
About the Ci250RRb-THX
The KEF Ci250RRb-THX is a passive, high-output in-wall or in-ceiling architectural subwoofer designed for discreet home theater and distributed audio installations. It uses a 250 mm (10 in.) extra-long-throw bass driver and is THX Ultra certified. KEF lists it as part of the Ci series and it remains present in current KEF document listings, so it does not appear to be discontinued.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 109 dB SPL @ 1W/1m
- Impedance
- 8Ω
- Frequency Response
- 20 Hz - 20 kHz
- Power Handling
- 150W
- Min. Amplifier Power
- 10W
- Max. Amplifier Power
- 150W
Power Specifications
Amplification power output and characteristics
- Minimum Impedance
- 4Ω
Speaker Design
Driver configuration and enclosure design
- Driver Type
- dynamic
- Driver Size
- 10"
- Driver Count
- 1
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 346 × 153 × 153 mm (W × H × D)
- Weight
- 5.6 kg (12 lbs)
Key Specifications
Sensitivity: 109 dB
Impedance: 8Ω
Frequency: 20-20000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions