Anyone have issues dealing with Sophia Electric ?

I have had good luck with 6SN7 tubes from Sophia, which are also very good. I have a friend who purchased the royal princess 300b's and a couple of 6SL7's. The 300B's were great, the 6SL7's were garbage. Sophia needs to do better for the money they are charging.

Some people really like the black treasure 300b's better than the Sophias. I think they better get their act together or people are going to go elsewhere.

Tubegroover, I bought replacements for my first set of Sophia 6SN7s at about 24 months, because I had a weird problem that I thought might have been one of the tubes. It wasn't the tube at all. I now have about 30 months on the original pair. They are used in my modwright sony cd player. I don't think your problem is typical. But I now have a nice pair of spare sophias, so I should be set for a long time.