Have you seen the video below? You'll have a lot of interest around the 2:20 mark.
The speaker / driver may be awesome, and I also suspect Danny may have some thoughts for you about it - whether it's his driver or not, Danny will tell you what he thinks; however, I also know he won't share "secrets", as one should not.
That run-on sentence was also awesome. 
https://youtu.be/tPDXy78auBA
The Purifi woofer seemed to do really well in his tests and it's awesome to see that Danny is designing the crossover for Norman's speaker! I bet it's going to sound great.
Did I miss anything in the video? I only watched until he moved on to some other speakers.
