My neighbor had the ADS studio monitors, rdm-1 or something. A 10" woofer, dome mid and two tweeters with a toggle switch to match the tweeter to standing the speaker or laying it down. He talked me into a pair of ADS L9e that weren't bad for the size and price, but I did find them a bit bright.
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.