S3-1224 | 12" (300mm) high-performance car audio subwoofer
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
JBL STAGE 1210 12 inch 1000W Woofer for sale online | eBay