KEF Ci3120QLM THX Certified Select Architectural In-Wall Speaker – 4 ohms

The KEF Ci3120QLM THX is a premium architectural in wall speaker engineered to bring reference class audio performance into high end home theatre and multi room installations. As part of KEF’s acclaimed Q Series and THX Certified Select, this speaker meets rigorous performance standards for detailed, distortion free sound at elevated listening levels. Its advanced 3 way design and precise driver configuration ensure rich, dynamic audio that fills the room with clarity, depth, and expressive power—making it ideal for dedicated home cinema front or surround channels where both music and movies demand superior fidelity.

Precision 3 Way Driver Array

At the heart of the Ci3120QLM THX is a sophisticated driver layout optimized for seamless integration across the frequency spectrum. Dual 120 mm (4.75 in.) low frequency drivers deliver strong, controlled bass with minimal distortion, while a dedicated 100 mm (4 in.) Uni Q midrange driver ensures accurate tonal balance and wide dispersion. Topping off the array, a 19 mm (0.75 in.) vented aluminium dome tweeter with Metamaterial Absorption Technology (MAT™) produces pristine high frequencies with reduced resonance and improved clarity. Carefully engineered crossover points at 440 Hz and 2.75 kHz allow each driver to operate in its optimal range, creating a cohesive and expansive soundstage.

THX Certified Select Performance

The THX Certified Select designation signifies that the Ci3120QLM THX has been independently tested to reproduce soundtracks with the clarity and dynamic range expected from commercial cinema systems—low distortion, high headroom, and consistent performance across a wide listening area. With a 4 Ω nominal impedance and recommended amplifier power of 25–250 W, this speaker pairs effortlessly with powerful AV receivers and separates, offering up to 105 dB maximum SPL for room filling impact while preserving nuanced detail in dialogue and music.

Thoughtful Architectural Integration

Designed for seamless in wall installation, the Ci3120QLM THX incorporates a slim profile and flexible mounting specifications that accommodate standard residential construction. Its robust cabinet and recommended rear volume support deliver consistent acoustic performance, while cut out dimensions and mounting depths are tailored for easy installation by professionals and integrators alike. With a wide 150° nominal coverage pattern, this speaker ensures even sound distribution throughout the listening space.

Features

• THX Certified Select architectural in wall speaker
• 3 way design with dual 120 mm low frequency drivers
• 100 mm Uni Q midrange driver with wide dispersion
• 19 mm vented aluminium dome tweeter with MAT™
• 4 Ω nominal impedance; 25–250 W recommended amplifier power
• Frequency response: 50 Hz–20 kHz (±6 dB open backed)
• Maximum SPL: 105 dB; Nominal coverage: 150°
• Designed for flush mount installation with precise cut out and mounting specs

Specifications

T2S3M3E9/55-BKM