It incorporates with Y35 graded ferrite magnet! The magnet is safely kept inside a firm and strong casing & is attached to the sub basket. Subwoofer type/ impedance: Dual 4 ohm. Voice coil (diameter): 3 (76.2mm). Xmax: 12.5mm (One way).
Ported: 4.50 5.00 ft. Cutout diameter: 419mm / 16.5. Overall diameter: 460mm / 18.1. Mounting depth: 198mm / 7.8.The item "CT Sounds Tropo 18 Inch D4 600 Watt RMS 18 In Dual 4 Ohm Car Subwoofer Audio Sub" is in sale since Sunday, February 2, 2020. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers". The seller is "thedingerdistribution2013" and is located in Spring, Texas. This item can be shipped to United States.