subs are on the 40x38 side, port is facing up on the 40x 18 top.
the way it is setup my subs are visible somewhat in my back window.
if i made a new box that same exact way, except put an extension so it was like a "cover" for the subs, (so basically another 40x38 sheet about 4" away from the subs cone).
if i did that and left just the top of that slab vented, could i use something like that for the port?
i hope someone understands what im saying.
basically i want it to serve the purpose of hiuding subs BUT im wondering if i do this would it act as a tunable port
so u want the port over the subs.. like involve what you are adding infront of the subs as part of the port? i think it would loose some sound but trust an expert if thats what u mean
What you have going is, in a sense, a bandpass setup more than a port. I would have to see pics to fully understand, but the bottom line is if it sounds ok, then you are good. I don't see any reason this will hurt anything other than change your fb.