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KEF Ci-R Series 6.5" In Ceiling Speaker

Model #: Ci160RR-THX
At a Glance

Ci160RR-THX is an ultra-high-performance loudspeaker featuring KEF's signature Uni-Q technology, designed for discreet in-ceiling or in-wall installation. As part of the Ci-R Series and a THX® Certified Ultra architectural loudspeaker, Ci160RR-THX is engineered to maintain exceptional sound quality at high outputs.

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Get to know this product.


Ci160RR-THX’s Uni-Q® array boasts a 25mm high frequency tweeter mounted in the acoustic center of a 165mm woofer, delivering the same, natural performance across the entire listening area. Plus, a Universal Cut-out system means its opening is the same as any 160mm KEF speaker for ease of installation and component selection.

THX ULTRA Certified

Ci160RR-THX is an in-ceiling speaker certified to THX ULTRA2 standard. A deep understanding of the filmmaking process and surround sound is at the very heart of every THX certified 2.1, 5.1 and 7.1 speaker system. Engineered with design characteristics of professional studio speakers, THX recreates the tonal balance of the filmmaker's final mix in your living room. The results? Action sequences are impactful, and dialogue-driven moments are natural and engaging.

THX certified in-ceiling speakers deliver the appropriate frequency response and high output and imaging quality of a traditional box speaker. This provides the best of both worlds - THX surround sound performance from components that blend harmoniously with any room décor.

Fast And Easy To Install

KEF's Ci loudspeaker design makes them so quick and easy to install that once the wire is run and the hole is cut in your wall or ceiling you can be listening to music in less than two minutes.

Key Features

  • THX Certified Ultra
  • 165mm (6.5in.) Uni-Q
  • 25mm (1in.) Aluminum dome tweeter with 'tangerine' waveguide
  • Paintable Ultra-Thin Bezel (UTB) and magnetic grille to blend unobtrusively with décor
  • Fast, versatile installation on virtually any surface via dogleg
  • Gold plated spring loaded terminals
  • Weather resistant
  • IP64 Certified


External Diameter234.6mm (9.24in.)
External Depth115mm (4.53in.)
Cut-out Diameter196mm (7.71in.)
Mounting Depth From Surface110mm (4.33in.)

Misc. Specs

Product Weight (lbs.)6.48
Color Finish NameWhite
Frequency Response52Hz - 24kHz
Water ResistantYes
Mounting TypeIn Ceiling or In Wall
CollectionCi-R Series
Input Power Range10 - 190
Speaker Connector TypeSpring Clips
Dust ResistantYes
Max Sound Level Db105
Product Weight (kg)2.94
Impedance4 Ohms
Number of Speakers1
Speaker TypeIn-Ceiling Speakers
WarningProposition 65 Warning for California Residents