SPEAKER DISCOTIQUE BEYMA 18 TIPE G550

Nominal Basket Diameter 18" / 460mm Impedance 8 ohms AES Power Rating 900 Watts Program Power 1, 800 Watts Frequency Response 25Hz - 1.5kHz Sensitivity ( 1W/ 1m) 98dB Voice Coil Diameter 4.5" / 114mm Recom. Enclosure Volume 2.8-7.0 ft3 / 80-200 Liters Voice Coil Length 25 mm Air Gap Height 11 mm X Damage ( peak to peak) 40 mm BL Factor 24.4 N/ A Magnetic Assembly Weight 25.3 lb. / 11.5 kg. Mounting Information Overall Diameter 18.11" / 460mm Bolt Circle Diameter 17.24" / 438mm Baffle Cutout Diameter- - Front Mount 16.34" / 415mm - Rear Mount 16.73" / 425mm No. Of Mounting Holes 8 Volume Displaced By Driver 0.46 ft3 / 13 Liters Overall Depth 8.27" / 210mm Net Weight 30.8 lb. / 14 kg. Shipping Weight 34.43 lb. / 15.65 kg. Materials Basket Die Cast Aluminum Cone Paper Surround Plasticised Cloth Voice Coil Edgewound Copper Ribbon Magnet Ferrite Thiele-Small Parameters Resonant Frequency ( fs) 36 Hz Impedance ( Re) 5.25 ohms Coil Inductance ( Le) 1.4 mH Mechanical Q ( Qms) 8.875 Electrical Factor( Qes) .385 Total Q ( Qts) .37 Comp. Equivelant Vol. ( Vas) 7.42 ft3 / 210 Liters Voice Coil Overhang ( Xmax) 9.0 mm Surface Area of Cone ( Sd) m2 0.1200m2 Reference Efficiency 2.5% Displacement Volume ( Vd) 1075 cm3