Rockford Fosgate Power T2S2-16 Power Series 16" 2-ohm component subwoofer at Crutchfield
EV EVM 18B 18" Subwoofer 16 Ohm – Dixie Speaker
Amazon.com: TIMPANO 15" Sub D4 1600 Watts Max Power Dual 4 Ohm, 15 Inch Car Subwoofer 16 mm Xmax, TPT-T1500-15 D4, 2.6 in Voice Coil, Double Stacked Magnet Sub Woofer for Car
Power 16" T2 Single 2-Ohm Subwoofer | Rockford Fosgate ®