I was the host of the event Ron attended. I'll answer this and post thorough comments on the speaker in the context of comments I see in this thread. Give me a day or two. -Phil
Hey, welcome Phil
Marc here, the chap who clogs up yr Inbox LOL
I've spent 5 long years here extolling the virtues of Zu, to minimal fanfare
Please share the load
Word on the (fairly invisible) grapevine is that designer Sean has some new ideas on cabinet design/materials, aimed at less cabinet talk/less dissipation of energy. He's championed high efficiency drivers, 101dB/1m, somewhat negated by cabinet "inefficiency". He believes he now has way better energy management/transmission, so making the very best of the high efficiency full range driver advantage.
Here's hoping this comes to fruition for the soon to be released Definitions VI flagship.