Beemer (Paul) is correct; ADS used 1530's, 1590's, and B&W 801F's. I posed the question in a letter to Jack Renner as to why they used so many speakers. I have in my possesion an informative letter from him, stating that they preferred the 1530's, but were looking for something more up-to-date. They tried the 1590's, but they had no deep bass, and they were going to try and use a subwoofer with them. When in Europe, the producer there preferred the B&W 801F's, but Renner also said the same applied to them as the 1590's. His reason for preferring the 1530's was that they were "highly detailed, produced a great sense of size, and would go deep, although were a little harsh when pushed hard". He never mentioned using the 980's.
Hope this helps.
Alan
Hope this helps.
Alan