Thanks for posting that extra info.Your Q&D Sat thread has been very enlightening.
The closed and vented box FR data sure show what the NS3 is really capable of, and it's limitations. It's a cost effective driver.
I'll proabaly jump in and build a quick and dirty enclosure and test it by ear, comparing it to my old nasty Samsung surrounds. Open air, the NS3 has plenty of detail. Maybe I'll use them up as mid range drivers ultimately, or throw a cheap tweeter in with them in that closed cabinet.