Rockford Fosgate First ‘Klippel Verified’ Aftermarket Car Audio Manufacturer
Rockford-powered aftermarket audio systems are typically loud. Nothing wrong with that. But how come the amplifiers have less wattage ratings compared with stuff at the flea market? You ever see THX-certified outside of your movie theater or inside of your Lincoln? The certification came from Tomlinson Holman as a way to set standards for how he wanted he sound to be reproduced.