OK, Mr. Kanuk:
I have done my best to give you the straight scoop. Here is some more, intended to get to the bottom of where this thread is going.
Are you living in America? Even if you are in Europe, I think that one telephone call to Tyler will clear up all this stuff. After all the sonic praise for Tyler's products, I did not mention an equally important point- Tyler's super great customer service and AVAILABILITY by phone or email to clear up ANY question. If you have not done so, I again recommend that you telephone him today. Mysteries will be debunked!!
Regarding the dealer's claims, NO, they are NOT TRUE. Tyler does buy his crossover components (and designs) from Madisound. If he is not satisfied with his own ears, he re-hires them for another round of design. His wife assembles and solders the crossover components in his shop. His brother is the cabinetmaker. Yes, he makes all cabinets in his shop in Kentucky. See, mysteries debunked! It's that simple. One conversation with Ty and you will see exactly what I mean. Until then, we will see a bunch of questions and chatback.
Good luck- get back with us after your call.