Chris,
Can I ask you two questions about the design choice?
I seem to recall you mentioning in the past a fondness for B&W 800-802s based to a good extent on the fact that the voice-range comes all from a single cone. It looks like that range may be split on these speakers between the upper-mid and mid-bass. I've no doubt that it's something that you've addressed, but I'd be really interested to know in what way.
Also, and I hope I'm not confusing you with another poster, I believe you have voiced a negative opinion of having two drivers work the same frequency range, citing concerns over comb filtering. How was that dealt with in this design?