SpeakersMFR-VERIFIED
KEF Ci4100QL-THX
KEF
Checked against your build
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Specifications · per-field provenance
● SOURCE-TRACKEDWhere we have it, each spec shows where the data came from.
Speaker typein-wallManufacturer
Way configuration3-wayManufacturer
Woofer count3Manufacturer
Woofer size (in)4Manufacturer
Midrange size (in)4Manufacturer
Tweeter size (in)0.75Manufacturer
Impedance, nominal (Ω)4Manufacturer
Sensitivity (dB @ 1 W/1 m)89Manufacturer
Sensitivity measurement contextunstatedManufacturer
Frequency response, low (Hz)55Manufacturer
Frequency response, high (Hz)28000Manufacturer
Frequency response toleranceunstatedManufacturer
Recommended power, min (W)10Manufacturer
Recommended power, max (W)150Manufacturer
Crossover frequency (Hz)2200Manufacturer
Enclosure typeopen baffleManufacturer
Cutout width (in)4.5Manufacturer
Cutout height (in)18.7Manufacturer
Height (in)19.3Manufacturer
Width (in)5Manufacturer
Depth (in)3.2Manufacturer
Weight (lbs)6.6Manufacturer
Sold aseachManufacturer
Common questions
ANSWERED FROM THE DATAWhat receiver do you need to drive the KEF Ci4100QL-THX?
The KEF Ci4100QL-THX is rated at 89 dB sensitivity (about average to drive) and is 4Ω nominal with no stated minimum — pick a receiver explicitly rated for 4Ω loads. Our free builder checks this against the exact parts in your build.
Computed from this product’s normalized, source-tracked fields — an unstated spec reads as “can’t check”, never as a yes or a no.
Check it against your build →Guides for Speakers
BUYING ADVICEThe best bookshelf speakers for home theaterRead the guide →
4 ohm vs 8 ohm speakers: sensitivity and impedance, explainedRead the guide →
Speaker placement: the free upgrade most rooms are missingRead the guide →
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