Whats the best and quietest 12AX7 tube

I purchased tubes from Ned at Triode as far back as five or six years ago. Yes, Ned does indeed know what he is talking about, but at last discussion, he was unable to provide some of the REALLY rare and hard to find tubes I was purchasing. IE: Telefunken 6922, Genelex KT66, Telefunken 6DJ8. All of these are EXTREMELY hard to find as brand new old stock. In fact, Kevin is the only person I have ever found to have NOS Telefunken 6922 that are the genuine article. If you do not need these tubes, my remarks are a moot point, however my respect for Kevin is in the fact that he has been able to deliver ALL the tubes I want, and at the absolute best quality available.

You've got to test listen for compatibility between various 12AX7s and the other tubes they're sharing space with in the preamp. But, try the Ei Yugo 12AX7. It is very inexpensive, and you might find it has a very musical balance too. It is also as quiet as any 12AX7 I have heard.

I'm sorry,I should have made an update a while ago.I bought a Tungsram 12AX7 super low noise.It quieted the phono to better than acceptable levels.Well,this got my mouth watering.After consulting with Albert and Kevin Deal I replaced all the tubes in my phono section.The Tungs went back to Audio Advisor.Kevin sent me 2 Telefunkin 12AX7 and 2 Radiotechnique 12AU7.These are very similar to Bugle Boys.The line stage has G.E.s which are fine.My mouth was still watering so I bought 4 Svetlana EL-34 for my Dyna.I replaced some very boring Sovtek EL-34 Gs.My Phono is almost as quiet now as my old Lehmann Black Cube was and sounds absolutely awesome!!!

I agree with Opus88. The EI 12Ax7 is a very fine tube and can even compare equally or favorably to a Telefunken 12Ax7.

The best 12AX7/ECC83 is without doubt, the BRIMAR. Period.