10" car wooferSensitivity: 87.8± 2dB Voice coil: Dual 2" (high temperature VC)Impedence: 4+4ohmMagnet weight: 70OZ Frequency response: 28-1.2KHZ Max power: 1800W Packing: 1pc in one color box2 color boxes in one cartonNet weight: 10.5kgGross weight: 13kgDimension: 32*32*38cm