Hi,
Eager customer who has an order in for the new unit design here.
I found this surfing the net and love the look. Sounds like a glass insert will be filling the void of the cut out.

Found this as well showing the CNC cuts:
http://youtu.be/-Q9WLLeFIuEAny more enclosure photos you can share like this?
Thanks and looking forward to the preamp!
Andy