KEF Ci4100qlb In Wall Subwoofer

All KEF in-wall speakers now with FREE SHIPPING in the UK, please note this offer is limited to mainland UK and will be automatically applied during the checkout process.

For the ultimate in Extreme Home Theatre, the formidable new Ci Reference Series Ci4100QLb in-wall subwoofer has the deep bass and theatre thumping output capabilities of a traditional KEF subwoofer coupled with the ability to deliver all the drama and emotional intensity of full theatre sound quality. With four high-output 100mm sub-bass drivers the Ci4100QLb is designed to be matched with KEF’s powerful KASA500 system amplifier. Each KASA500 can power up to two of the Ci4100QLb subwoofers for even the most demanding theatre installations.

Features and Benefits
Multi Room systems.
Home Theatre systems.
Lounges, Bars, Boutiques.
Boardrooms & Offices.
Airports, Convention Centres, Hotels.
or anywhere that high quality discreet sound is required..


note: Price is per each speaker and includes VAT.

Nominal Impedance 4ohm
Sensitivity (2.83V/ 1m) 90dB
Frequency response (±6dB) open-backed 35Hz - 120Hz
Drive units
LF 4 x 100mm (4 in.)

Required Amplifier KASA500r
Product external dimensions (H x W x D) 490 x 128 x 81 mm 19.29 x 5.04 x 3.19 in.
Cut-out dimensions (H x W) 476 x 114mm (18.74 x 4.49 in.)
Net Weight 3 kg (6.61 lbs)
Mounting depth from surface 76mm (3.0 in.)
Optional rough in frame RIF4100L