JBL BASSPRO SL 2 BassPro Powered 8" Underseat Vehicle Hideaway Subwoofer System - Open Box - Creative Audio
JBL GT5-2402BR Ported enclosure with two 12" GT5 subwoofers at Crutchfield
Amazon.com: JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black : Electronics
GT-BASSPRO12 | Subwoofer speaker with built-in 150W RMS amplifier with bass port for a surprising bass experience
JBL Stadium 1000 High Performance 2600 Watt Peak Power Class D Car Audio Mono Subwoofer Amplifier Bundle with 2x JBL Club 1224 12" 1100 Watts Peak Car Audio Subwoofer with Selectable Smart Impedance - Road Entertainment
JBL® Stage 122 12" Car Subwoofers | Quality Auto Sound | Western United States
Amazon.com: JBL - Two STADIUM122SSI 12" High Performance Automotive Audio Subwoofers with Selectable Impedance : Electronics