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
S3-1224 | 12" (300mm) high-performance car audio subwoofer
JBL 4645 Professional Series 18" Subwoofer - Perfect for JBL 4343 Spea