http://audioinfosource.com/2011/12/t...-small-studio/
THE WORLD’S SMALLEST RECORDING STUDIO?
Check out this 1946 photo of the (now long-gone) Hollywood Recording Studio in downtown Los Angeles, owned by engineer Mr. J. T. Martin. The 9×9-foot structure is divided into two rooms—a 6×9 combination office/control room, and an elongated 3×9-foot recording area.