Well that’s unfortunate. Nobody there now was there in the analog heyday. And they aren’t knowledgeable about the older gear past what they have in their system. It’s not their fault. It’s just what it is, unfortunately. I’ve searched around in all the internet books and crannies I know and come up dry. I truly hope you have some luck with Teac Japan. And congratulations on owning such a rare Tascam unit!