I have JJ gold pins in my current WA, and in the past have typically used the std JJ in previous WA's. I still have a Russian2 and the JJ to me just has noticeably more of everything.
I also have some late 50's RCA 12AX7's that have a fabulous top end glassy sound in the WA, but they're also lighter in the low end... they'd make a great recording tube if I ever use it for that.
I just replaced the stock tubes in a WA head with a set of JJ ECC803S gold pin tubes.
I definitely noticed a change in tone. They sound a lot better than the Mesa stock tubes.
The overall tone with the JJs is more hi-fi with warm lows, not muddy, slightly mid-scooped, and brilliant highs.
Another tube combination I'm using is a Genelex Gold Lion Premium (B759) in V1 and a JJ ECC803S gold pin in V2.
This combination brings out more mids than two JJ ECC802s and produces a richer tone in my opinion.
Since I currently own two WA heads, I'll probably run two JJ803s in one amp and the Genelex/JJ combo in the other.
Other tubes I've tried include:
JJ ECC83s
Tung Sol 12AX7
Ruby 12ax7ac5 HG+
Electro Harmonix 12ax7EH
None of these tubes impressed me with the tone they produced except for the Ruby in V1 when used with the JJ803s in V2.
But when compared to the dual JJ ECC803s combo, the dual JJ ECC803s sounded better in my opinion.
I've read a review on the Tube Store's website regarding the North Electric 12AX7 being a good replacement tube for a WA head.
I might buy one to satisfy my curiosity.
Has anyone else used this tube?
Additionally, I read a few reviews about the Telefunken 12AX7/ECC83 smooth plate.
That tube seems to be a favorite among a few TBers.
But, at $500 a tube, that's a little out of my price range since I'm not gigging on a regular basis.
This adventure in tube rolling was interesting.
I did not realize changing tubes would affect the tone to a point where it would be noticeable.
The only other amp I've swapped out tubes in was a SWR Bass 350.
I swapped out the stock Groove Tubes tube with a Mesa tube, but did not notice a change in tone.