We had a couple of these demoed for a couple of weeks in the early 70's - our Drama editors loved them. We had only one AVR-1 then, and they wanted 2 9000's in leiu of another AVR-1 . Unforunately, they got neither, with plans to keep our 6 old 2000's until VPR's became available. John NETV Creations Unlimited Guyra Australia.