EH 12AX7's in Marshall JCM Slash or 25th Anniversary Jubilee?

[LesPaul59]

Has anybody tried them in this amp?

How do they compare to Tesla/JJ's (gain/coloration/clean channel)?

 

[Wizard of Ozz]

I use Sovtek 12AX7's and Svetlana EL-34s in my Slash 2555SL. :guy

 

[100watt marshalls x3]

I have but one blew and the another is to microphonic, I ended up with two jj's and one sov (LPS). I got my Ei's from the tube store so you should get them from someone better eg lordvalve is ment to have good ones. I would suggest you get lots of different ones and experiment for your self. good luck

 

[LesPaul59]

100watt,

Are you running the Sovtek LPS in V1? How do you like the LPS? I heard the LPS was very nasal sounding...

Did you try running the EH in V1, with the JJ's in V2 and V3?

 

[100watt marshalls x3]

It's inthe position closest to the power amp tubes. I like the sound of the LPS it has alot of clarity. My mate likes the LP even better in his jub 2555. I experianced gain and volume loss from the jj's. I don't know why yet, as others don't get this. (maybe it's the 240 volt power here in New Zealand) The Ei's had more sparkle kind od sounded more like a vox if your into that.

 

[Troy T. Blues]

The Sovtek LPS, JJ Tesla and the EH 12AX7's are all very good. Some people even like the Groove Tubes 12AX7C's which are Chinese, but have a tone all their own. Ei's are supposed to very, very good, but beware of the microphonic ones!!! They are notorious for being microphonic.

I prefer NOS !!! I really like RCA 12AX7's, black plate or not. They have a wonderful clarity and response to them whether it is for a Marshall or Fender amp.