1.50 cf net tuned to 50 hz and hit less 135.5 db in restricted port and from experience the sub will get 1 db louder unrestricted and then we tried lowering the cubic feet in the 2.50 cf box net to about 2.20 cf or little more at what seemed to be a 36 hz tune and it hit the same 142.4 db but tighter than the 2.50 cf at 35 hz....I think bottom line the audioque 2.5 12 likes large boxes
39 square inches plenty but can feel air fro op and bottom of port not s much the center of it which is weird unless you go deeper in the port....playing music at low volumes anyway
39 square inches plenty but can feel air from top and bottom of the port not so much the center of it which is weird unless you go deeper in the port....playing music at low volumes anyway