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Ensoniq was created in 1982.
80 yd2 is 66.9m2
9 sq ft = 1 sq yd so 80 sq ft = 80/9 = 8.88... sq yards.
There are 9 sq ft in a sq yard so 80 sq ft / 9 = 8.8888 sq yards.
80 sq in = 0.0516 sq metres