Cool-cab! I happened to do a diddo,almost. But not to be a smarty or nothun,ya ought to re-think your watts per sq.ft.At least up over 50 w.p.sq.ft. Mine figured like this...3.5 ft x4.25 ft=14.87sq.ft. I will be powering with 2-600watt digitals(lower-heat) thats 1200watts /1200w into the sq.footage is 80.69 watts per sq.ft. I fgured why not max the sh. out of it,for the bigger colas!! My-cab will surely need a good-sized a/c unit ducked in..ENJOY!!Medicinal-user....