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Would love to know a reseller of the sound shields...I hate the generator running on this boat.
When we're anchored and swiming, it's pretty annoying. I'm for anything that helps both...the cabin is not as bad as the exterior noise.
Squirrel Cage blowers took blower noise down from 62.5dBa to 51.5 dBa - so an 11 dBa reduction - with ZERO reduction in airflow.
And took the loaded Generator+Blower down from 66.2 dBa to 63 dBa - so a 3 dBa reduction.
So now I'm just hanging in there for the sound shield fitting if I can find some good "base" material to mount it on. That should hopefully take another 6 dBa off at least (= 50%+ reduction). A lot of noise is also reflected out of the "air intakes" - and that could do with some noise reduction material on the walls there.
I know I'm resurrecting an old thread but I too have a noisy exhaust. The generator itself is quiet and has a sound-shield. It's only the exhaust externally. Has anyone changed out their exhaust muffler since 2015 or have any input?