Shuguang black treasure 2a3-z...

I have been running a set of sovtek 2a3's on my wright sound 3.5 monos. The sound was instanly better on my klipschorns than the KT88 on another amp I was running. Only issue I had was the lean bass. So, I dove into the deep end of cost and these beauties just came in today. They have been running for about half an hour now. In a word... WOW!!! My bass is astounding. ALmost as good as the KT88. Was worth every penny and just wanted to share as there isn't much out there on these magnificent tubes.