JBL-BASSPRO12 Car Subwoofer-GTBASSPRO2 | Audio Express | Western United States
JBL GT-BassPro12 Enclosed Sub w/ Amp | United Country Musick & Sons
JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, b – PartLimit
JBL GT-BassPro12 Ported powered subwoofer with 12" sub and 150-watt amp at Crutchfield
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