3000W Chinese Gensets Info.

So, I just purchased the "RV" edition of the Champion. It is very loud. Does anyone have any advice on how to muffle the sound? Do they make mufflers to attach to the existing one?

I have not heard a new Champion running, but I certainly was under the impression that they were using the same muffler and sound abatement system that other Chinese GX200 engine driven clones were using. This has been measured at 67dB at about 21 feet on a number of different gensets, which meets NPS standards. I have measured my ELM3000 and it meets this standard. The previous Champion used the same type engine and muffler system as my ELM3000(I hope the new one does as well).

I, and several others, have run some experiments on further reducing sound on these gennys. Based on those experiments, little if anything can be gained by adding another muffler. The majority of noise comes from the mechanical aspects of the engine and generator. To eliminate this noise, a method of baffling that breaks up sound waves and still allows air to continue to move across the engine and generator is needed. Several attempts have been made in this area, some apparently successful, others not. Do a key word search for postings dealing with enclosures and sound reduction on this forum.

Short of actually getting your hands on a sound level meter to post what readings your generator actually has, I can't really comment any further on what you have determined as very loud. The Champion should be noticeably quiter than other "commercial/industrial" generators and lawn equipment in its power class, but it will not be as quite as a Honda 3000, 2000 or Kippor 3000 which have sound deadening cabinets.