Product typeHigh-frequency DriversNominal Diameter1 ", 25.4 mmVoice Coil1 ", 25.4 mmOverall diameter88.9 mmDepth121.9 mmNominal Impedance8 Ohm(s)Nominal Load Capacity25 WSensitivity (horn 1 W / 1 m)105.2Frequency response2500 - 20000 Hzrecommended crossover frequency2500 HzVoice Coil CarrierPolymideDiaphragm materialPhenolicMagnetFerriteMounting holes4Diameter of fixing holes6.6 mmWeight1 kg