Amazon.com: DS18 MD12 Car Subwoofer Audio Speaker - 12" in. Polypropylene Cone, Black Steel Basket, Single Voice Coil 4 Ohm Impedance, 1000W MAX Power and Rubber Edge for Vehicle Stereo Sound System :
Amazon.com: DS18 EXL-X12.2D Subwoofer in Black - 12" Speaker, 2,500 Max Power, 1,250 RMS Power, Fiber Glass Dust Cap, Red Aluminum Frame, Dual Voice Coil 2+2 Ohm Impedance, Treated Rubber Edge (1
DS18 ELITE Z12 12" Subwoofer 1600 Watt Dual 4 Ohm Pro Bass Car Audio Sub Woofer 663593058751 | eBay
DS18 Elite Z12 12" Elite Series 1500W 4-ohm DVC Subwoofer - Car Audio Giants
DS18 SLC-MD12.4D 12" Select Series 1000W 4-ohm DVC Subwoofer - Car Audio Giants
DS18 MD12.4 Car Subwoofer Audio Speaker - 12" in. Polypropylene Cone, Black Steel Basket, Dual Voice Coil 4 Ohm Impedance, 1000W MAX Power and Rubber Edge for Vehicle Stereo Sound System : Electronics - Amazon.com
Amazon.com: DS18 SLC12S Car Subwoofer Audio Speaker - 12" in. Paper Glass Fiber Cone, Black Steel Basket, Single Voice Coil 4 Ohm Impedance, 500W MAX Power and Foam Surround for Vehicle Stereo