What Are The Best 12AT7's and 12AX7's?

I'm wondering if there are performance gains to be had via better quality/sounding tubes for my Herron VTPH-2. Thanks for the input.

dodgealum09-02-2011 3:41pm

aussiemale Details Discussions Posts This discussion Message User 10 posts 11-11-2011 at 11:13am Copy Comment URL Report Comment Edit Delete yes ,they are the best of 12at7, very sweet sounding tubes , accurate bass , details , open ,transparency and ultra rare very hard to find .vttc