Flush mount speaker chassis tweeter dimensions 60 x 60 mm weight 014 kg power rating rms 60 watt power handling programme 100 watt impedance 8 ohm frequency response 1000 30000 10 db hz sensitivity 91 db resonance frequency fs 1 500 hz coil inductance l 017 mh surface area of cone sd 17 cm dc resistance 65 ohm maximum mechanical limit 05 mm dispersion 978000 hz housing diameter 56 mm mounting depth 27 mm