That's a good question, perhaps Terry DeWick can answer.
Can one expect to see Motorola output devices, glass epoxy PCBs, Allen Bradley carbon resistors, Sprague Transi-lytic and ERO caps inside a Stereotech?
I certainly hope they don't contain the transi-lytic caps since those deteriorate rather sharply with age. The Allen Bradley's hold some allure for that "vintage voicing". However, they sometimes drift with age.
The green encapsulated ERO Caps are pretty good tho.