I have had the Airmotiv 4 Powered Speakers for a while when I picked them up at one of their roadshows and could not be happier. They sound great, I like their ribbon tweeter, they play loud if needed and are built like a tank.
Unfortunately they do suffer some of the same problems as their bluetooth counterpart
1. No way to add a subwoofer
2. Bass response, while great for a speaker it's size, will not get the extreme lows
Overall they offer an excellent $ for Sound Quality Ratio