The Ci3160RLb-THX is a THX certified Ultra2/Select2 in-wall home theater subwoofer designed to work with the KEF KASA500 power subwoofer amplifier. The Ci3160RLb-THX features three high-output 6.5in sub-bass drivers mounted to a massive & gorgeous brushed aluminium baffle. 
 
For the ultimate in Extreme Home Theater, certified to THX ULTRA2 and THX SELECT2 standards, the formidable Ci R Series Ci3160RLb-THX in-wall subwoofer has the deep bass and theater 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 three high-output 160mm sub-bass drivers mounted to a massive aluminium baffle the Ci3160RLb-THX must be matched with KEF’s powerful KASA500 system amplifier. Each KASA500 can power up to two of the Ci3160RLb-THX subwoofers for even the most demanding theater installations.

For theater building flexibility, the remainder of KEF’s Extreme Theater suite consists of two THX Ultra2 certified in-wall LCR speakers, a THX Ultra2 certified in-ceiling LCR speaker, as well as a smaller in-wall subwoofer and smaller in-wall LCR.