Cinema Performance Without Compromise

THX Certified Ultra performance for large home cinema installations.
The KEF Ci5120QLM-THX is a premium in-wall loudspeaker designed to deliver true cinematic scale in large listening environments. THX Certified Ultra and equipped with KEF’s latest acoustic technologies, it combines exceptional power, precision and immersive realism while remaining virtually invisible once installed.

Precision Through Innovation

Advanced acoustic technologies working together.
The 12th generation Uni-Q® driver array and Metamaterial Absorption Technology (MAT™) work together to create a wide, consistent soundstage with remarkable clarity. MAT™ absorbs up to 99% of unwanted rear-wave sound, reducing colouration and allowing subtle musical and cinematic details to emerge naturally.

Powerful Bass for Large Spaces

Four dedicated bass drivers deliver effortless low-frequency performance.
Four custom-designed 120mm long-throw bass drivers provide exceptional bass extension, speed and control. Whether reproducing explosive movie effects or demanding orchestral scores, the Ci5120QLM-THX delivers clean, authoritative performance with remarkably low distortion.

Engineered for True Theatre Sound

Three-way architecture for greater accuracy and realism.
A carefully optimised three-way crossover ensures each driver operates within its ideal frequency range. The result is seamless integration, precise dialogue reproduction and an expansive soundstage that fills even large rooms with effortless realism.

Designed to Disappear

Premium aesthetics without compromising performance.
Finished with a paintable magnetic metal grille and KEF’s Ultra-Thin Bezel, the Ci5120QLM-THX blends discreetly into any interior. Its architectural design allows the focus to remain entirely on the listening experience rather than the loudspeaker itself.