Diameter: 50mm Cone Material: Mylar Edge: Mylar Nominal Power: 1.0w Maximum Power: 2.0w Impedance: 8+15%Voice coil: 13.3mm Fo: 600+20%Hz Response: Fo-4.5kHz S.P.L: 83+3dB/W/M Magnet Size: 32*1886(Ferrite) Net weight: 49g