Nothing new here! The DCM QED had a similar design and specs in 1976. And looked better with its square cross-section! Plus exemplary phase (time) response.
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@klen1959, I don't know much about NSM (now NSMT) or their sister company - Role Audio. However, I have been checking out their designs on their websites for many years. I've heard a couple of their small speakers and thought they were fantastic, sounding much bigger than their physical size would lead you to believe. I'm not sure they do anything revolutionary, but most of their speaker designs are a bit unusual when compared to the plan boxes most speaker companies are pushing these days.
I wonder if they have a showroom at their Research Park, NC facility? Would love to get a listen to the complete lines from both NSMT and Role Audio.