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 1220b - Dual 12" Stage subwoofers mounted in a slot-ported enclosure - Preloaded car subwoofer boxes - Custom Sounds & Tint
BassPro SL | Powered, 8" (200mm) car audio under seat woofer system
Amazon.com: JBL SUBBP12AM - 450 Watts (150W RMS) 12” Amplified 12 in. Ported Subwoofer with Sub Level Control and Distortion Free Bass with Gravity Magnet Phone Holder Bundle : Electronics
Amazon.com: JBL 12" Dual 4ohm DVC Car Subwoofer : Electronics