On August 14, 2019 at 13:40, Duct Tape said...
if the back of the sub is exposed to the port side of the enclosure, it could be getting damp, which would be bad for the back side of most speakers. if the front side faces the port, chances are the cone and surround are made out of plastic and rubber which would be fine. i'm guessing that's what was meant about how the sub orientation could be affecting the life of the product.
Good point- and a plastic cone/surround could be an indicator for where the water is entering, by preventing it getting to the other side (assuming the rim is well-sealed).