There are two seperate enclosures (I can barely pick up one at a time). The bottom one is 25"X24"X24; the upper is 25"X24"X16" (approx). Pics are below.At $2800 a pair retail I have high hopes for the 1.5" JBL 2435 drivers but I won't know until I get the horns in.
As far as GPA goes, thanks for the suggestion but I'd rather buy Bose first.