FWIW, I try not to use any products outside of their specified use unless a product engineer (not sales person) at the manufacturer says it’s OK and explains why. You just don’t know what you don’t know. Heck, there could be a glue used on the crossover circuit that won’t fare well in cold/damp environments.

I’ve broken from this practice a few times. Sometimes I’ve gotten away with it and other times I haven’t. Indeed, I’ve run into rusting on magnetic grills.

The one thing I know for certain is that I sleep better when I adhere to the practice than when I don’t.