The KEF Ci5160REFM-THX represents the pinnacle of in-wall speaker engineering. As KEF’s first in-wall model to receive THX® Certified Dominus certification, it sets a new benchmark for performance in private cinemas and expansive living spaces. Combining four 6.5” bass drivers, a 12th-generation Uni-Q® driver array with Metamaterial Absorption Technology (MAT™), and a robust aluminium baffle, it delivers clean, deep bass down to 32Hz and crystal-clear high frequencies. The result is an enveloping soundstage that rivals the most sophisticated freestanding systems—all hidden seamlessly within your wall. Designed, engineered, and handcrafted in the UK, the Ci5160REFM-THX delivers cinematic fidelity and visual discretion for the most demanding home installations.
Features:
KEF’s first THX® Certified Dominus in-wall speaker
12th-generation Uni-Q® driver array with MAT™ for wide dispersion and pure treble
Four powerful 160mm (6.5in.) bass drivers for deep, articulate low frequencies
Engineered 11mm precision-cut aluminium baffle for rigidity and performance
Magnetic paintable metal grille and optional cloth grille for aesthetic flexibility
Handcrafted in Maidstone, UK
Hairline-finished aluminium baffle (Aluminium Black/Grey)
Designed for both performance and seamless architectural integration
Specifications:
| Feature | Details |
|---|---|
| Design | In-wall three-way closed-box with rear enclosure |
| Drive Units | LF: 4 x 160mm (6.5″) MF: 125mm (5.25″) Uni-Q® HF: 25mm (1″) aluminium dome with MAT™ |
| Frequency Response (±6dB) | 40Hz – 28kHz |
| Frequency Range (-10dB) | 32Hz – 45kHz |
| Crossover Frequencies | 600Hz, 3000Hz |
| Sensitivity (2.83V/1m) | 92dB |
| Nominal Impedance | 4 Ω |
| Recommended Amplifier Power | 50 – 500W |
| Recommended High-pass Filter | 35Hz – 80Hz |
| Maximum SPL | 116dB |
| Nominal Coverage (degrees) | 150° |
| Product Dimensions (H x W x D) | 1070 x 230 x 105.7 mm (42.13 x 9.06 x 4.16 in.) |
| Cut-out Dimensions (H x W) | 1052 x 209 mm (41.42 x 8.23 in.) |
| Mounting Depth From Surface | 99 mm (3.9 in.) |
| Net Weight | 21.7 kg (47.8 lbs.) |
| Ideal Rear Volume | 90 litres |
| Minimum Rear Volume | 40 litres |
| Maximum Wall Thickness | 40 mm (1.58 in.) |
| Minimum Wall Thickness | 6 mm (0.24 in.) |
| Certification | THX® Certified Dominus |
| Optional Accessories | Rough-In Frame RIF5160L |




















Reviews
There are no reviews yet.