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

audioblazer Details Discussions Posts This discussion Message User 325 posts 11-08-2011 at 03:31pm Copy Comment URL Report Comment Edit Delete Anybody has any experience with valvo 6201 blue label triple mica pinched waist ( 12at7) ?
audioblazer Details Discussions Posts This discussion Message User 325 posts 11-22-2011 at 02:23pm Copy Comment URL Report Comment Edit Delete I have amperex bugle boy, telefunken ribbed plate , mullard long plate, cv4004, and telefunken ecc803s is the best for my equipment. No contest