KEF Ci160TS 4.5" Ultra Slim Square In-Ceiling Speaker
£270
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Sold asSingle
Impedance8Ω
Amp power10–100W
Warranty2 years
GrilleIncluded
KEF Ci160TS 4.5" Ultra Slim Square In-Ceiling Speaker
Order by 1pm Mon–Fri for same-day dispatch
Free tracked UK delivery · Next day £11.99
30-day returns · full manufacturer warranty
Multi-buy savings
Buy 2+£243 eachsave £27 each
Discount applied automatically in your basket.
You'll need an amplifier
These are passive speakers, so they need an amplifier to power them (8Ω, 10–100W recommended). Either of these will drive a pair and stream music from your phone.
Need speaker cable?
Allow about 10m per speaker for a typical run back to the amplifier. Webro 16/2 LSZH (low smoke, zero halogen) is the right cable for runs in ceilings and walls.
The KEF Ci160TS is an ultra-slim square ceiling speaker designed for anyone who wants great sound without a bulky installation. With a mounting depth of under 36mm, it's an excellent choice for rooms with shallow ceiling voids, including bathrooms, kitchens, home cinemas and living spaces where a discreet finish matters.
Why we like it
- Slimline under 36mm design fits where many conventional ceiling speakers simply won't
- KEF's Uni-Q driver array spreads sound evenly across the room, even off-axis
- Magnetic, paintable grille blends into any ceiling colour or decor
- Moisture-resistant build makes it a sound choice for humid rooms
- Square format suits contemporary interiors wanting a different look from round speakers
Installation notes
The Ci160TS requires a square cut-out of 194 x 194mm and a mounting depth of under 36mm, making it well suited to retrofit installs with limited ceiling cavity. The overall speaker dimensions are 222.8 x 222.8mm, so ensure adequate clearance around the cut-out for the bezel/grille. As a passive 8 Ohm speaker it needs an amplifier - a compact streaming amp such as a Sonos Amp or WiiM Amp works well for background music zones, while multi-room or multi-channel amps suit larger installations.
Specifications
| Driver | 4.5" (115mm) Uni-Q bass/mid driver with 0.75" tweeter |
| Frequency Response | 110 Hz - 24 kHz (±6 dB) |
| Impedance | 8 Ohms |
| Sensitivity | 87 dB (2.83V/1m) |
| Overall Dimensions | 222.8 x 222.8 mm |
| Cut-out | 194 x 194 mm |
| Mounting Depth | Under 36 mm |
| Weight | 1.1 kg |
Questions we get asked
Does it come with a grille?
Yes. Every ceiling and in-wall speaker we sell comes with its grille in the box. Manufacturer photos often show the speaker with the grille removed so you can see the drivers, but the grille is always included.
Will it fit my ceiling?
You'll need a 194mm cut-out and at least 36mm of depth behind the ceiling surface. The visible trim is 223mm across. Standard plasterboard ceilings with joists are usually fine; check for pipes, cables and insulation before cutting. Not sure? Send us a photo or plan and we'll check it for you.
Do I need an amplifier?
Yes. These are passive speakers, so they need an amplifier or AV receiver to drive them. They're rated at 8Ω with 10–100W recommended amplifier power. For most rooms a Sonos Amp or WiiM Amp is ideal: each drives a pair and streams from your phone. You can also buy a package with the amp included and save 5%.
Do I need a fire hood?
If there's a habitable room above (for example a bedroom), or the ceiling forms part of a fire escape route, Building Regulations require each speaker to be fire-rated, usually with a fire hood fitted over the back. Hoods also cut sound travelling to the room above. See all fire hoods.
How many speakers do I need?
As a rule of thumb: a pair for most bedrooms, kitchens and living rooms up to about 20m², two pairs for large open-plan spaces, and a single stereo speaker (T2 / stereo models) for small rooms like en-suites. For home cinema, use 5 or 7 speakers plus a subwoofer. Our free design service will plan positions and sizes from your floorplan.
Is it sold singly or as a pair?
Priced per speaker. Add the quantity you need; multi-buy discounts are applied automatically in your basket.
When will it arrive?
Orders placed by 1pm Monday to Friday are dispatched the same day. Standard tracked delivery is £7.99, or free on orders over £50; next working day delivery is £11.99. Delivery details.
Can I return it?
Yes. Unused items can be returned within 30 days of delivery, and every product carries the full manufacturer warranty. Returns & warranty.