IN YOUR EXPERIENCE ?? WHAT IS THE QUIETEST 12AX7 TYPE TUBE ??? 6072 ? Spiral Filament

I'm looking for the quietest 12ax7 style tube you have used....Not what you heard about , but what you have personally used.......Thanks Will

autospec12-10-2018 6:54pm

Post removed Dec 11, 2018
scorpio1951 Details Discussions Posts This discussion Message User 171 posts 12-11-2018 at 02:53pm Copy Comment URL Report Comment Edit Delete I replaced the McIntosh tubes that came with my McIntosh MC2300 and replaced them with NOS Telefunken tubes from the 1960's. Big improvement.
noromance Details Discussions Posts This discussion Message User 1,780 posts 12-22-2018 at 02:10pm Copy Comment URL Report Comment Edit Delete Shuguang Treasure black 12AX7LS from Grant Fidelity. Better than Telefunkens and dead silent. I use them in my phono amp and beat everything I’ve tried over the years (and that is a lot of tubes!)
oddiofyl Details Discussions Posts This discussion Message User 1,076 posts 12-31-2018 at 01:15am Copy Comment URL Report Comment Edit Delete I have some RCAs from the early 60's that are super quiet and sound fantastic.... They are labeled , etched 12ax7wa which I believe is a mil spec designation