I got to demo the N1X's for a few weeks and the Neo tweeter is definitely a step up over the encore tweeters in the X-series. I love my X speakers (Statiks, Voce, Omnis, LS') but there was more air, more detail, more space, and just an overall cleaner sound from the Neo tweeters. No listener fatigue either. I could easily listen to them for hours.
I can only imagine how great the OB-5/7's are.
Danny has totally ruined me when it comes to ever buying big-name speakers. I'm not saying there aren't good ones out there, but they'll probably cost a lot more and still need some tweaking.