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best bass or close to that 12AX7 tube

Hi,
It is time for me to change tubes in my CJ PV-12 with phono stage, one of the 12AX7 almost gone. And having rather flat bass in my system (I don't have a subwoofer) I am looking for something that would have more color in thta range. Not looking for much punch, I don't listen to rock/pop, rather more color when viola or basso continuo plays or kontrabass this is where it would be usefull. Budget for one matched pair is under $425. I need one pair of 12AX7 and I wsa planning to change the 12AU7 (I have 3 of them there) as well. Thank you
avs9

Showing 2 responses by czbbcl

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czbbcl
1,752 posts
 
Telefunken .........Read more here if you haven't already done so. http://audiotubes.com/ . I am not affiliated in any way.

Thanks Chuck
czbbcl's avatar
czbbcl
1,752 posts
 
My cj pre amps (premier 16/17) never responded much to NOS tubes although I never experimented a lot . Tried some Jan Philips and Sylvania's and the EH 6922 Gold Pins performed on par with them. And actually the JAN Philips were somewhat microphonic. But maybe your experience will be different.

Now my Cary SLI-80F1 responded to NOS tubes and differences where easy to discern. I am currently running 7308 Amperex with Sylvania 6sn7wgta's. I have tried Bugel Boy 6dj8's and National 7DJ8's and all have their pluses and minuses but all were better than new production.

As far as 12ax7's go. I have a Herron vtph2 phono stage that takes 4 of them and 1 12at7. I have Telefunken in all 5 positions actually I have an ecc801s (Tele) in the 12at7 position and it is much smoother/natural sounding along with more detail than the stock Ei's provided.

Chuck

Good Luck and have fun rolling tubes.
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