Specifications Nominal diameter 254mm/10in Power rating 250watt-500watt Nominal impedance 16 ohm Sensitivity 95dB Frequency range 60-4000HZ Chassis type Cast aluminum Magnet type Ferrite Magnet size 170x85x20mm Magnet weight 1.64kg/57.9oz Voice coil diameter 65.5mm/2.5in Coil material CCA Number of layers 2 (Inside/Outside) Former material Glass fiber Cone Material Paper Surround material Cloth Spider Single X-max 4mm/0.15in Gap depth 8mm/0.31in Voice coil winding width 15mm/0.59in Net Weight: 4.8kg/pcs Gross Weight: 5,2kg/pcPacking Size: 27 27 12cm/pcs Garansi 1 Tahun