Hi to all of you ADS speaker lovers! I've been reading your comments on various topics about the speakers over the years. Thought I might give you all some of my insights.
1. I have owned many of ADS speakers, starting in the 70's and currently own the 1590-2, 1290-2, L400w with metal grilles. One of my fav's was the 1530, but due to room sizes, sold them to my sister.
2. I have experimented with biamping the 1590's, using the ADS C2000 x-over as well as the PA-1's. I contacted ADS back in the day to find out how to modify the C2000 to work with the 1590's, and there were two resiste