... ,100 OZ Magnet 220*110*20Sensitivity:96dbImpedance: 8 Ohmpower:400 Watt RMSDWF515015" Woofer, Alu Basket4" VC,100 OZ Magnet 220*110 ... *20"Sensitivity:96dbImpedance: 8 Ohmpower:450 Watt RMSDWF518018" Woofer, Alu Basket4" VC,100 OZ Magnet 220*110 ... *20"Sensitivity:97dbImpedance: 8 Ohmpower:500 Watt RMS... 12",15"and 18" sound speakers