Speaker Component Ashley LF18 V400 Woofer 18 inch Original Specifications : Nominal diameter 460mm/18inch Power rating 1000watt 2000watt Nominal impedance 8 Sensitivity 96dB Frequency range 45-200O0HZ Chassis type Cast aluminium Magnet type Ferrite Magnet size 220x110x20mm Magnet weight 2.8kg/98.5oz Voice coil diameter 99.5mm/4in Coil material CCA-W Number of layers 2 (Outside) Former material Glass Fiber Cone Material Paper Surround material Cloth Spider Single X-max 7mm/0.27in Gap depth 10 mm/0.39in Voice coil winding width 22 mm/0.86in Net weight 10,49kg /pcs Gross Weight 12,23kg /pcs