JBL Harman CSX-1400BP Car subwoofer passive 1200 W | Conrad.com
JBL Cs-1200Wsi 12" Car Audio Sub Woofer (1200W 300 Rms) : Amazon.in: Electronics
JBL Stadium 82SSI 8" (200mm) High-Performance Car Audio Subwoofer - Each - Walmart.com
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