You have asked this question before. The simple answer is to roll them.
Based on my largish experience rolling 6SN7s, I am confident you will find an big improvement over the Sino stock tubes.
If you are real queezy about the bucks try some less expensive alternatives. Email me with you preferences and I can tell you a reasoinable bit about what's out there.
Based on my largish experience rolling 6SN7s, I am confident you will find an big improvement over the Sino stock tubes.
If you are real queezy about the bucks try some less expensive alternatives. Email me with you preferences and I can tell you a reasoinable bit about what's out there.