hey guys i have a quick question i recently built a box for two zcon 12 inch subs. it consists of a single 6 inch aero tuned to 37 hz only 9 inches depth in a enclosure 5.46 after sub displacement it seems like the sub closest to the port is unloading or sounds Blown at frequencies higher then 40 hz but the one on the left doesn't do this.. could it be the encloser is causing the sub to unload and sound distorted? i had designed a different box which would be a slot port with these specs gross volume 6.98 ft^3 port volume : 1.43ft^3 physical port length 20.00" port bends : no Baffle displacement : 0.19ft^3 port area range 60-80in^2 port area 81in^2 port area per ft: 16.27in^2 net volume : 4.98ft^3 tuning frequency : 37.05 hz 2 common port walls woofer disp. : .38