Quote:
Originally Posted by stubones99
Also check your engine mounts to make sure you're not turning your boat hull into a sounding board with the engine vibrations. If you're picking up a lot of low frequency noises, those usually come through the engine mounts or exhaust systems.
Also see if running different combinations of engines / gensets changes the amount of cabin noise. If you hear more noise with the genset, that should be your first target.
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This is very true. My generator sound box was mounted directly to a flat wooden area on my boat, and that big wooden area acted like a speaker transmitting the vibration all over the boat. I used some of Soundown’s isolating mounts underneath the gen box and it made a huge difference. The generator itself inside he sound box has typical rubber engine mounts but they transmit much of the vibration unlike these well engineered Soundown mounts.