If he got a wake and douched that 110V generator with a bunch of salt water. Shocking experience?
We have an inboard diesel 7 KW generator. It's not silent -- but pretty quiet compared to others. Our noise really comes primarily from the water out of the exhuast. If we had an underwater discharge, I'm not sure one would hear it.
The noise of the Hondas seems at higher frequency level as well as overall dB level across the audible range.