JBL Club WS1200 1000W 12" 2 or 4-Ohm Selectable Shallow-mount Car Subwoofer | eBay
Club WS1200 @Autotec Vehicle Technology Solutions
Amazon.com: JBL Club WS1200 12" Shallow Mount subwoofer w/SSI (Selectable Smart Impedance) Switch from 2 to 4 ohm Bundled with Alphasonik Earbuds : Electronics