i have owned 2 honda eu2ki geni's. I also had the opportunity to play with a kippor. It looks to me to be a near identical clone of the honda. It may not be built to the same high tolerences, but who knows. I started it up and plugged stuff into it just for fun.
according to this http://www.helpcharts.com/decibel-range-chart-info.html
: sound intensity doubles every 3 db....so if something is 7 db louder, that is more than twice as loud.
My opinion is that you should go to mayberrys.com and order a honda. They are $899, no tax, free shipping.