KEF Ci5120QLM 4-Way Q Series THX Ultra 4-Way In-Wall Home Cinema Speaker 4 ohms

Description The KEF Ci5120QLM is a premium 4-way architectural in-wall speaker from KEF’s acclaimed Q Series, designed to deliver reference-grade home cinema performance with THX® Certified Ultra precision. Engineered for serious home theatre enthusiasts, this speaker reproduces cinematic soundtracks with exceptional clarity, dynamics, and depth, providing a fully immersive audio experience. Its sophisticated driver arrangement ensures accurate, distortion-free sound across the entire frequency spectrum, making it ideal for front or surround channels in high-end installations.Advanced 4-Way Driver DesignThe Ci5120QLM features four 120 mm (4.75 in.) low-frequency drivers for deep, controlled bass, a 100 mm (4 in.) Uni-Q midrange driver for natural midrange reproduction, and a 19 mm (0.75 in.) vented aluminium dome tweeter with Metamaterial Absorption Technology (MAT™) for ultra-clear high frequencies. Carefully designed crossover points at 440 Hz and 2.75 kHz ensure each driver operates in its optimal range, delivering a seamless and expansive soundstage that fills the room evenly.THX® Certified Ultra PerformanceWith its THX® Ultra certification, the Ci5120QLM meets the most stringent standards for home cinema speakers, providing high SPL output with minimal distortion and consistent tonal balance across a wide listening area. Its 4 Ω nominal impedance and recommended amplifier power of 25–250 W allow it to integrate seamlessly with high-performance AV receivers and amplifiers, producing dynamic, cinematic sound that reproduces dialogue, music, and effects with professional-grade accuracy.Seamless Architectural IntegrationDesigned for in-wall installation, the Ci5120QLM combines high-performance audio with clean architectural aesthetics. Its slim profile, optimized cut-out dimensions, and mounting depth allow for easy installation in new construction or retrofit projects. With a recommended rear volume of 70 L and a minimum rear volume of 35 L, it delivers consistent acoustic performance while remaining flush with the wall surface for a discreet, elegant appearance.Features4-way in-wall Q Series speaker with THX® Certified Ultra4 x 120 mm LF drivers, 100 mm Uni-Q midrange, 19 mm MAT™ tweeterFrequency response: 45 Hz – 20 kHz (±6 dB open-backed)Maximum SPL: 105 dB; Nominal coverage: 150°4 Ω nominal impedance; 25–250 W recommended amplifier powerDesigned for flush-mount installation with precise cut-out dimensionsIdeal rear volume: 70 L; Minimum rear volume: 35 LIP64-rated for durability in various environmentsSpecificationsSpecificationDetailsModelCi5120QLM THXSeriesQ SeriesFrequency Response Range45 Hz – 20 kHzFrequency Response Remark±6 dB open-backedFrequency Range (-10 dB)38 Hz – 20 kHzSensitivity89 dBNominal Impedance4 ΩNominal Coverage150°Maximum SPL105 dBDrive UnitsLF: 4 x 120 mm (4.75 in.)MF: 100 mm (4 in.) Uni-QHF: 19 mm (0.75 in.) vented aluminium dome with Metamaterial Absorption TechnologyCrossover Frequency440 Hz, 2.75 kHzRecommended Amplifier Power25–250 WRecommended High-Pass Filter35 Hz – 100 HzProduct External Dimensions (H × W × D)818 × 186 × 96 mm (32.2 × 7.3 × 3.8 in.)Cut-Out Dimensions (H × W)795 × 163 mm (31.3 × 6.4 in.)Mounting Depth From Surface90 mm (3.6 in.)Mounting ThicknessMaximum: 36 mm (1.42 in.)Minimum: 6 mm (0.24 in.)Ideal Rear Volume70 LMinimum Rear Volume35 LNet Weight9.7 kg (21.4 lbs.)Gross WeightSingle box: 12.8 kg (28.2 lbs.)Master box: 27 kg (59.5 lbs.)Safety and Regulatory ComplianceIP64THX CertificationTHX® Certified UltraT3S0M1E4/55-BKM