Metal1977 Active member Apr 21, 2018 #2 I'm not sure if it makes a big difference if it's for a Rev 2 instead of a Rev Blue. The best combo i've found so far for the Rev 2 Uber is: Chinese (Beijing) military square getter 6N4-J for preamp and EH 6CA7's for the poweramp.
I'm not sure if it makes a big difference if it's for a Rev 2 instead of a Rev Blue. The best combo i've found so far for the Rev 2 Uber is: Chinese (Beijing) military square getter 6N4-J for preamp and EH 6CA7's for the poweramp.