JBL GX1200 High Performance 1000 Watts 12" 4 Ohm SVC Car Subwoofers SUB | eBay
JBL PartyBox 1000 Powered Bluetooth® speaker with light display at Crutchfield
Amazon.com: JBL S2-1024SS SERIES II 1000 WATTS 10" SELECTABLE 2 OR 4 OHM SUBWOOFER ENCLOSURE : Electronics
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 PartyBox 1000 Bluetooth Portable Powered PA Speaker | zZounds
JBL Club 1024 10" 1000 Watts Peak Power Selectable Impedance Car Audio Subwoofer - Road Entertainment