Select Store

KEF Ci200QSb-THX In-Ceiling/In-Wall Subwoofer (Pair)

Free UK Delivery


KEF Ci200QSb-THX In-Ceiling/In-Wall Subwoofer

When designing and engineering their range of in ceiling and in-wall loudspeakers, KEF retained the philosophy of 'hiding your speakers, not your sound' in order to offer the home audio enthusiast the best possible sound achievable within a discrete and almost invisible aesthetic. The Ci series is able to deliver a phenomenally accurate response, complete with the three-dimension stereo sound imaging you'd expect from high-quality conventional loudspeakers.

The Ci200QSb-THX is a specialist subwoofer, designed to be integrated within a ceiling or wall space and offer a lifelike bass response without taking up any physical space within the home theatre environment. Certified to THX ULTRA2 and THX SELECT2 standards, the Ci200QSb-THX is capable of filling a room with deep, controlled bass to enhance all of your audio/visual sources. Music is more engaging, and the rumbles of your favourite films and games put you at the heart of the action. 

The Ci200QSb-THX features a powerful high output sub-bass driver unit, 200mm (8 inches) in size. The subwoofer can be used in passive mode, adding to the LF output of KEF's custom installation in-wall or in-ceiling speakers, or inactive mode when paired with the dedicated KEF KASA500 system amplifier. Use this amplifier to achieve true THX SELECT2 specification. 

Who is KEF?

KEF is a highly renowned, multi-award winning loudspeaker manufacturer whose high-quality products can be found all over the world. KEF began in Maidstone Kent in 1961 by an electrical engineer, Raymond Cooke. KEF is named after Kent Engineering & Foundry, which occupied the KEF site previously. Raymond Cooke was created OBE by Queen Elizabeth II in 1979. KEF has produced products for the BBC, and have a vast range of products at many different price points.

NOMINAL IMPEDANCE  6 Ohm - Passive Mode (Crossover "ON")
N/A - Active Mode (KASA500) 
SENSITIVITY   85dB - Passive Mode (Crossover "ON")
N/A - Active Mode (KASA500)
 FREQUENCY RESPONSE 40Hz-100Hz - Passive Mode (Crossover "ON")
18Hz-140Hz - Active Mode (KASA500) 
CROSSOVER FREQUENCIES  100Hz - Passive Mode (Crossover "ON")
N/A - Active Mode (KASA500) 
 DRIVE UNITS LF: 200mm (8 in.) 
          RECOMMENDED AMPLIFIER POWER         10-150W - Passive Mode (Crossover "ON")
KASA500 - Active Mode (KASA500) 
PRODUCT EXTERNAL DIMENSIONS Diameter: 273 x 273 x 106 mm
(10.75 x 10.75 x 4.17 in.) 
 CUT-OUT DIMENSIONS H x W: 238 x 238 mm
(9.37 x 9.37 in.) 
NET WEIGHT   3.3kg (7.28 lbs) 


UK Delivery

Providing your item is in stock, the order is usually dispatched within 24 hours. Postage and packing is completely free for orders over £100*. Out of stock items will be dispatched as soon as they become available, which can take between 4 to 21 days      

UK Delivery orders are sent via our couriers' DPD Local on a next-day-delivery service and usually take between 1 and 3 days. 


Local Delivery

Certain manufacturers disallow mail order for their products, however a local delivery may be possible.

We offer a local delivery service for a large number of our products. After your order has been placed, a member of the Hifi Gear team will contact you to arrange a convenient date and time for your local, personal delivery.


Click & Collect

We offer a free ‘Click & Collect’ service on all items. As soon as your order has been completed and is ready for collection a member of our team will be in contact with you. Orders can be collected from our store at 11 King Street, Hereford, HR4 9BW.


Please use this link to find more detailed delivery information or contact us for more details