Umm... wow. :holycow::holycow:
That is some amazing woodworking skills! Truly amazing and humbling.
Was this a design you came up with? Or was it some design out there? The scan-speak drivers are definitely the cat's meow from everything I've heard.
Also, given your investment in these beauties, I think an investment in a test mic (e.g., Behring ECM8000) is in order.
Once again though -- WOW!
JCD