Ci3160RLb-THX 3x6.5" Built-in Home Theatre Column SubwooferFor the ultimate in Extreme Home Theatre, certified to THX ULTRA2 and THX SELECT2 standards, the formidable new Ci R Series Ci3160RLb THX 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 three high output 160mm sub bass drivers mounted to a massive aluminium baffle the Ci3160RLb THX