I had a pair of ADS car speakers on the rear tray of a 1965 Volvo P-1800S. Even with the metal grill covers they were pretty awesome, as was the car. But time and memory tend to make old things better than they really were.
Who uses ADS Speakers
I worked at ADS in The late 70s and Find they are one of the best home speakers ever.
I always loved their accuracy.