At only 80 mm (31/8 inches) diameter, Monitor Audio's CPC120 is a loudspeaker that offers extraordinary sound quality for a truly innovative application. Its precision-engineered micro-design allows it to offer a surprisingly coherent and detailed performance from a standard halogen downlighter hole. Specifications Category Details Frequency Response 100 Hz – 20 KHz Nominal Impedance 8 ohms Sensitivity (1W@1M) 85 dB Maximum SPL 101.9 dBA Power Handling (RMS) 20 W50 W (using crossover) Recommended Amplifier Requirements 5 – 20 W5 – 50 W (using crossover) Drive Unit Complement 2" Full range micro-driver Overall Diameter (Including Grille) 80 mm (31/8") Overall Depth 96 mm (33/4") Cut-Out Hole Diameter 65 mm (21/2") Mounting Depth 91.5 mm (35/8") Fixing Type 2 x Spring clip fixings Connection Gold plated "push" type terminals Construction Material Steel Bezel Aluminium Enclosure Weight 0.19 kg (0.42 lb) Sold As Pair Warranty Lifetime