GENERAL SPECIFICATIONS Nominal Diameter:460 mm Rated Impedance:8 ohm Power Handling Nominal:1100 watt Power Handling Capacity : 2200 watt Sensitivity 2.83V,1M:96.5 dB Frequency Range: 30 -2000 Hz Voice Coil Diamete: 99.5 mm Voice Coil Former: Glass Fiber Voice Coil Material : SV-W Washer size OD H: 210*12 mm T-Yoke size OD H: 210 mm Surround Design : Triple roll Magnet:220 mm Ferrite ring