Amazon.com: JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black : Electronics
JBL GT-Basspro12 Speaker and amp 79807-1 LOCAL PICK UP ONLY!! | eBay
Review: JBL GT Bass Pro 12" Subwoofer - Team-BHP
JBL GT-BassPro12 | 12" Loaded/Powered Subwoofer System
I need help troubleshooting a problem with a JBL GT-basspro12, works fine when car is running but when I turn the car off it doesn't power off : r/subwoofer
JBL GT-BassPro12 Ported powered subwoofer with 12" sub and 150-watt amp at Crutchfield