PRO Driver Tweter JIC DA 44S Speaker Diameter Voice Coil = 44.4 mm Throat Diameter = 25.4mm / 1 inch Impedansi = 8 ohm Program Power = 110 W Ulir Sensitivity (1w/1m) = 107 dB Frequency Range = 1.2k - 20k Voice Coil Material = Round Aluminium Wire Voice Coil Former = Kapton