1.Car subwoofer 2.18" subwoofer 3.18" subwoofer box is available 4.OEM is welcome 5.Competitive price Pro 18" subwoofer,18" car audio subwooferSW124218” wooferMet allic red coat ed IMP P cone wit h rubber edge40oz high-energy st ront ium magnet2” 4-layer heat resist ant A S V v/ coilMax power: 600wattFrequency: 40-1000HZS P L: 90dB Pro 18" subwoofer,18" car audio subwoofer