Ci160TS Boasting the latest incarnation of our formidable 4.5in. mid/bass T Series driver and powerful 1in. tweeter, the ultra-slim new T Series Ci speakers open up new possibilities for enjoying KEF's uncompromised sound quality where installation space is at a premium. Key Features:- ◦Less than 36mm mounting depth allows fitment to very restricted cavities ◦Ultra-low profile LF unit with excellent bass extension ◦Vented tweeter with KEF's unique 'tangerine' waveguide for natural HF response and wide, even dispersion ◦Rigid flat diaphragm assures clean upper bass and mid-range response ◦Paintable Ultra-Thin Bezel (UTB) and magnetic grille to blend unobtrusively with decor ◦Fast, versatile installation on virtually any surface via dogleg Technical Specification:- Nominal Impedance 8 Ohm Sensitivity 87dB (2.83V/ 1m) Frequency Response 110Hz - 24Hz (+/-6dB) open-backed Crossover Frequencies 1.7Hz Drive Units LF: 115mm (4.5in. Dual layer) HF: 25mm (1in.) Recommended Amplifier Power 10-100W Product external dimensions Diameter : 222.8x222.8 mm (8.77 x 8.77 in.) Depth : 41mm (1.61in.) Cut-out dimensions HxW: 194 x 194 mm (7.64 x 7.64 in.) Mounting depth from surface Less than 36mm (1 7/16in.) Optional rough in frame RIF160S Optional rear enclosure RNC160S Net Weight 1.05kg (2.31lbs) Unit measurement Piece