Thanks to everyone.
@puffball08 Right now I am using RCA clear tops as 12au7s and nos mullard from black burn facility as 12ax7. I have some other tubes too and have been rolling and listening for what I like best.
My amp has lundahl opt, vcap odams, tkd pot. Don't think there is any modded rectifiers.
@sns Do you find that even reliable budget 300b tubes (gold lions, linlai black plates) sound as good as 'premium'/more expensive 300b tubes? WE, Elrog, TAK, ELS etc?

