Devilboy, thank you for you response. I actually purchased the 1800 the other day. I don't usually do this type of purchase without and audition. I spoke to Mark from Core Power Tech and he was very convincing. The thing is, how do you know if you have dirty power or not? I have a Fluke scope monitoring my incoming power. The sign wave is partially clipped at the top of the wave and there is noticeable pattern/square pattern running on the neutral. I believe this is noise but am not positive. Hopefully this cleans this all up. Do you have your amp plugged in to the 1200 as well?