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Seeking tube 12AX7 recommendation for a Conrad-Johnson Premier 3

I recently had my Conrad-Johnson Premier 3 pre-amp restored. It sounds great running with JJ tubes, but I am interested in upgrading the two 12AX7s. Looking for recommendations for upgrade tubes. I know CJ recommends Mullards.

I appreciate any tube advice specific to this amp, but any general 12AX7 recommendations are appreciated.

The other Premier 3 tubes are 5751 (5) and 5965 (2). My tech recommended upgrading the 12AX7s first though.

The CJ is being used as a preamp (phono and CD) connected to a line-level input on a Rogue Audio Cronus Magnum II. Speakers are Vandersteen 2CE Signature IIs.
Thanks
arturos73
lowrider57's avatar
lowrider57
5,417 posts
 
Mullards are pricy. The longplate square getter is the best I've heard, but it's about $400 - 500 per pair. Check out all the versions. The CV4004 is a magical sounding tube.
Also, look at Brimar. Made in UK as well, more extended and dynamic than a Mullard. 

noromance's avatar
noromance
9,938 posts
 
Search for 12AX7 on the forum.
arturos73 OP
38 posts
 
lowrider57:  the 5751s are JJs too. What 5751 would you recommend pairing with the Mullard 12AUX7s that I just swapped in out of the Cronus (they are Hammond branded)? I am looking for some Brimar 12AUX7s too.

noromance:  Thanks - I’ll do some more forum digging.
I appreciate the responses.
bbroussard
189 posts
 
RCA or GE 3 mica blackplate 5751s from the mid 1950s.
ebm
9,311 posts
 
Amperex medical from Brent Jesse matched set $450.00 the best by far!!
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