It is a dual 2? (ohm) resistive (voice coil) subwoofer.
This is a 600W (RMS) car audio subwoofer with 1200W max power. 3 (diameter) voice coil makes this product versatile irrespective of its size, dimensions and power consumption. 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 2 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 D2 600 Watt RMS 18 In Dual 2 Ohm Car Subwoofer Audio Sub" is in sale since Thursday, September 13, 2018. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers". The seller is "thedingerdistribution2013" and is located in Houston, Texas. This item can be shipped to United States.