I think the move to transformer coupling is a good move, especially for BAT, since much of their gear has had problems with capacitors.
I would be tempted to try a VK-P12. Maybe they are hopping on the Allnic bandwagon, as Allnic has been transformer coupling for years now.
I would be tempted to try a VK-P12. Maybe they are hopping on the Allnic bandwagon, as Allnic has been transformer coupling for years now.