JBL CLUB 1224 1100 Watts 12" Selectable Impedance 2 or 4 Ohm Car Audio Subwoofer 50036345309 | eBay
1 Pair (QTY 2) of JBL STADIUM122SSI 12” High Performance 1350 Watts Peak Power Car Audio Subwoofers with SSI (Selectable Smart Impedance) - Road Entertainment
JBL STADIUM122SSI 12" High Performance Automotive Audio Subwoofer with Selectable Impedance - Open Box - Creative Audio