Find out how the port is being employed by the speaker - in other words, find out what frequency range goes to the port. If that is the area you need to cut, then you should consider it (might want to discuss with the manufacturer to be safe).
My dealer had to stuff the ports to get Wilson Sashas to work in my room. In my case, it reduces the lowest frequencies, but that's what the room called for.
My dealer had to stuff the ports to get Wilson Sashas to work in my room. In my case, it reduces the lowest frequencies, but that's what the room called for.