JBL SUBBP12AM 12” Amplified 12” Subwoofer with Sub Level Control | electronicsexpo.com
JBL A1300HI - Car Subwoofer (1 Channel Wired 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/Selenium 12MB3P 12" Woofer for MidBass 1000 Watts | Reverb
JBL BassPro 12 Ported powered subwoofer with 12" sub and 150-watt amp | Competition Sound
JBL S2-1224 12" 4 or 2 Ohm Subwoofer 12-INCH Woofer 1100 Watts Max 300W RMS | eBay