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Ci5160REF-THX
CA $ 12,999.99
Only the finest dealers are approved to offer this product. Your purchasing experience should be worthy of a loudspeaker such as this, and should come with matching levels of service and support.
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 Ultra2 Certification.
Priced as a single speaker.
Note: All Reference products are hand made to order. Expected build time is 4-12 weeks on all standard finishes.
Product Features
Ci5160REF-THX The KEF Ci5160REF-THX is built to the same exacting standards as the REFERENCE speakers. And like all REFERENCE speakers, the Ci5160REF comes with the REFERENCE Build Certificate signed by the craftsman who built it. |
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Uni-Q Driver Array At the heart of the Ci5160REF-THX is the 12th 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. |
Bass Drivers Like everything else about THE REFERENCE, the bespoke 165mm 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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Crossover 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. |
Ci5160REF-THX
The KEF Ci5160REF-THX is built to the same exacting standards as the REFERENCE speakers. And like all REFERENCE speakers, the Ci5160REF comes with the REFERENCE Build Certificate signed by the craftsman who built it.
The KEF Ci5160REF-THX is built to the same exacting standards as the REFERENCE speakers. And like all REFERENCE speakers, the Ci5160REF comes with the REFERENCE Build Certificate signed by the craftsman who built it.

Uni-Q Driver Array At the heart of the Ci5160REF-THX is the 12th 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 165mm 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. |
![]() |
Crossover 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. |
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Spec
Model | Ci5160REF-THX |
Nominal Impedance | 4Ω |
Sensitivity (2.83V/ 1m) | 90dB (2.83V/ 1m) |
Frequency response (±6dB) open-backed |
40Hz - 28kHz (±6dB) open backed |
Crossover frequency | 400Hz, 2.8kHz |
Drive units LF MF HF |
4 x 160mm (6.5 in.) 160mm (6.5 in.) 25mm (1 in.) Uni-Q |
Recommended Amplifier Power | 40 - 500W |
Product external 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 209mm (41.42 x 8.23 in.) |
Net Weight | 22.0 kg (48.5 lbs) |
Mounting depth from surface | 99mm (3.9 in.) |
KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE. THX, the THX logo, and Ultra2 are trademarks of THX Ltd. THX and the THX logo are registered in the U.S. and other jurisdictions. All rights reserved. |
Downloads
Ci Series Specification Sheet | • Open In New Window • Download |
Ci5160REF-THX Information Sheet | • Open In New Window • Download |
Ci5160REF-THX User Manual | • Open In New Window • Download |
Ci5160REF-THX Product Drawing | • Open In New Window • Download |