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Architectural Speakers


Features KEF’s patented Uni-Q driver array

The standards of architectural speakers have been reset forever. We introduce the in-wall KEF Ci5160REF-THX - the newest addition to THE REFERENCE family, meeting KEF’s standards for Extreme Theatre as well as THX Ultra Certification.

*This product may take 12-14 weeks for delivery.


The Ci5160REF-THX is engineered with a massive aluminium baffle to eliminate vibration and is the perfect platform for the 125mm (5 inch) MF/HF Uni-Q driver array with 25mm (1 inch) vented aluminium dome tweeter and four 160mm woofers.
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Uni-Q driver array

At the heart of the Ci5160REF-THX is the 11th generation of the KEF’s signature innovation: the Uni-Q point source MF/HF driver array. With a 25mm vented aluminium dome tweeter at the exact acoustic centre of a 125mm mid-range driver, both act as a single source that floods the listening space evenly with a flawless natural sound field.
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Bass drivers

Like everything else about THE REFERENCE, the bespoke 160mm LF driver optimised for use in-wall, is a class apart. With a massive vented magnet assembly and a large aluminium wire voice coil driving an exceptionally light, stiff and strong alloy cone, the dynamics and power handling are superb.
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KEF engineers computer-modelled the ideal crossover networks before exhaustively auditioning every high-grade component to select those with the lowest distortion and the smoothest response. Perfectionism takes time, but the difference is clear. Nothing is overlooked – the HF and LF crossovers are even mounted on separate boards to minimise crosstalk.

The Details


accordion open
Nominal Impedance
4 Ohms
90dB (2.83V/ 1m)
Frequency Response
40Hz - 28kHz (±6dB) open backed
Crossover Frequencies
400Hz, 2.8kHz
Drive Units
LF: 4 x 160mm (6.5 in.)
MF: 125mm (5.25 in.) Uni-Q
HF: 25mm (1 in.)
Recommended Amplifier Power
40 - 500W
Uni-Q Array
Product External Dimension (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 209mm (41.42 x 8.23 in.)
Mounting Thickness
Ceiling Thickness (Maximum): 40mm (1.58 in.)
Ceiling Thickness (Minimum): 6mm (0.24 in.)
Mounting Depth From Surface
99mm (3.9 in.)
Optional Rough In Frame
Net Weight
22.0 kg (48.5 lbs)
Unit Measurement
KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE. THX, the THX logo, and Ultra are trademarks of THX Ltd. THX and the THX logo are registered in the U.S. and other jurisdictions. All rights reserved.
KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE.

Please visit our Ci Software Download page for more details.

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