Since day one, we've spearheaded the car audio revolution. Nothing's changed. Rockford Fosgate® is still the global leader in audio innovation, design and engineering, delivering an experience of passion through sound in a way the world has never felt.Since day one, we've spearheaded the car audio revolution. Nothing's changed. Rockford Fosgate® is still the global leader in audio innovation, design and engineering, delivering an experience of passion through sound in a way the world has never felt.