Sorry, that GenTent is a joke - effective for keeping rain off but noise deadening of any measure? :S As one who
has built a
really effective genset noise reduction system your request IMO just isn't practical. A well designed box absorbs some of the noise, blocks some of it, draws intake air in preferably with fan assist, exhausts both hot cooling air
and hot exhaust gases out through multi chamber ports, AND while doing all this further reduces noise transmission by having all joints tightly sealed. It's a tall order and one that most of those so-called "genset noise reduction boxes" on YouTube don't come anywhere near close to meeting. Merely surrounding a running genset with a few panels will offer even worse results ... better than nothing at all for sure but nowhere near close to being truly effective.
