pnichols wrote:
What Honda needs to do is introduce a new variable speed portable inverter generator line that TOPS OUT at 53dB instead of STARTING OUT idling at 53dB. They do have one model that idles at only 47dB, but they need to add several more of various power ratings. I know that it can be done, as I've stood right next to and tried to hear certain ultra-low sound level high power commercial generators at shows, fairs, etc., that truly are the Sound of Silence.
There will be a fair amount of engineering to accomplish your "low sound" goal in this endeavor and I'd bet that there will be a horse power ceiling and consequent electrical output limit to reach this goal.
Coming at sound reduction from another angle like Soundguy did with his EU2000 is a more efficient process, IMO. Look at what the Japanese can do with generator boxes (sorry, can't find a link this morning). The Japanese enclosures really cancel a lot of the sound transmission and are an easy solution. The downside is that one of these enclosures adds approx. $200 to the generator cost.
For those wishing to explore sound reduction at an engineering level, this
Study from VPI covers a lot of ground.