Featuring KEF’s sophisticated ’sit anywhere’ Uni-Q driver array, which places the tweeter in the acoustic centre of the bass/midrange cone, this allows both the tweeter and woofer to act as a single point source that disperses the sound widely and evenly throughout the room. Together with the discreet Ultra Thin Bezel (UTB) design, offering the slimmest possible visible rim around the speaker, the Ci Q Series range gives you tremendous freedom to position the speakers where you please.

Ci4100QL-THX is an in-wall speaker certified to THX SELECT2 standard. A deep understanding of the filmmaking process and surround sound is at the very heart of every THX certified 2.1, 5.1 and 7.1 speaker system. Engineered with design characteristics of professional studio speakers, THX recreates the tonal balance of the filmmaker's final mix in your living room. The results? Action sequences are impactful, and dialogue-driven moments are natural and engaging.

THX certified in-wall speakers deliver the appropriate frequency response and high output and imaging quality of a traditional box speaker. This provides the best of both worlds - THX surround sound performance from components that blend harmoniously with any room decor.

Model	Ci4100QL - THX
Nominal Impedance	4Ω
Sensitivity (2.83V/ 1m)	89dB
Frequency response (±6dB) open-backed	55Hz - 28kHz
Crossover frequency	2.2kHz
Drive units LF MF HF	3 x 100mm (4 in.) 100mm (4 in.) 19mm (0.75 in.) Uni-Q
Recommended Amplifier Power	10-150W
Product external dimensions (H x W x D)	490 x 128 x 81 mm (19.29 x 5.04 x 3.19 in.)
Cut-out dimensions (H x W)	476 x 114mm (18.74 x 4.49 in.)
Net Weight	3 kg (6.61 lbs)
Mounting depth from surface	76mm (3.0 in.)