Nominal Diameter: 18"/461 inch/mmRated Impedance: 8 Ω AES Power: 1500 WProgram Power: 3000 WSensitivity: Depends on horn(97dB→)Frequency Range: 30 - 1000 HzVoice Coil Diameter: 115 mm (4.5”)Net Weight: 16.8 kg >