Immersive - KEF Ci3160RLb-THX In-Wall Passive Subwoofer The Ci3160RLb‑THX throws deep bass into your home theatre without dominating the visual space. It slips neatly into your wall and delivers immersive, cinema-quality rumble with three carefully tuned 160 mm drivers. Once you play a blockbuster or orchestral score, you feel every subtle low-frequency shift. Certification This subwoofer carries THX Ultra certification, guaranteeing reference-level performance. It matches KEF’s Extreme Home Theatre philosophy, packing in serious output and accurate tonal balance while installing flush behind drywall. It brings the fidelity of a dedicated floor subwoofer into the architectural space. Power The three aluminium-cone woofers sit on a solid aluminium baffle, designed to handle serious power. The Ci3160RLb‑THX connects to KEF’s KASA500 amplifier system — and each amplifier can drive up to two of these subwoofers. That gives you room to scale bass in flexible, powerful ways. Integration You can install this model in stereo or mono contexts. It suits LCR layouts or more advanced surround systems. The thin-bezel magnetic grille allows the unit to blend discreetly into painted walls. Your décor doesn’t suffer — your bass performance doesn’t either. Reliability Mounting demands are modest: the cut-out depth stays slim, and the rear volume remains compatible with standard wall cavities. It supports wall thicknesses from 6 mm up to 40 mm, making it ideal for solid or framed installations. At roughly 10.9 kg, it feels substantial in-hand but doesn’t overload your wall structure. When you build a serious home cinema system, the Ci3160RLb‑THX gives you that powerful, room‑shaking foundation without the bulky cabinet. It delivers precision low frequencies in a clean, architectural form factor — ideal for installations that demand both performance and discretion. Specification Value Nominal impedance 4 Ω Sensitivity (2.83 V / 1 m) 92 dB Frequency response (±6 dB, open) 20 Hz – 140 Hz Amplifier requirement KASA500 (supports up to two units per amp) Drive units 3 × 160 mm (6.5 in) sub-bass drivers Maximum SPL 112 dB (typical THX rating) Cut‑out dimensions (H × W) 660 × 209 mm External dimensions (H × W × D) 680 × 230 × 96 mm (without grille) Mounting depth (from surface) 88.5 mm Wall thickness (min – max) 6 mm – 40 mm Net weight 10.9 kg Certification THX Ultra
