hey guys
first posts here ... i wanna build myself a dual 12'' box ..i'll be using 3/4 mfd board. 33"W X 16"H X 17"D = 4.0 cu ft ..i want sub to face up and aero port face back .according to Precision Sound Products.. if i using one 4" flare port i only needs about 6.3" ...how accurate is the...