I have owned NSM (which I believe is the parent company, or it could be the other way around) speakers and enjoyed them very much. They replaced Mission 70's and provided a deeper soundstage along with a richer, fuller sound. I believe that Role Audio speakers are designed with more refinement and aimed at the audiophile. On the couple of times I called NSM, the owner (I forget his name this morning) answered and was very helpful and pleasant. I don't know which speakers you're looking at, but my NSM's were a sealed box design and needed a shade more power to drive, but well worth it. I know this company seems to have been around a while (it started out in New York and is now in Carolina) and continues to be under the radar in the US but does a significant business in Europe. I wouldn't hesitate to buy Role Audio speakers (or NSM for that matter). Enjoy.