Hammond makes a series of cases that are gasketed, and if you use thin O rings on each switch and pot… I think you might need special plugs though. How deep underwater do you usually play? I’m sure there’s a solution to this vexing problem!
Have they tried these during monsoon season? 'cuz 60% humidity + 68f dew point at 100f equals about 120% humidity..... It's literally raining but it's so hot the rain evaporates before it hits the ground.
Fender started imbuing their circuit boards with wax because they found out in some areas (mentioned above) the circuit board would become so wet it would start conducting, which is a really bad thing to happen at 375v.....